{"product_id":"ctn-300-coating-thickness-gauge","title":"CTN-300 Coating Thickness Gauge","description":"\u003ch1\u003eThe BRK CTN-300 Coating Thickness Gauge is designed for versatile, high-precision measurement of coating layers on a wide range of substrates.\u003cspan style=\"color: rgb(255, 42, 0); text-decoration: underline;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003eIt combines both magnetic induction and eddy current measurement principles with intelligent calibration algorithms to deliver accurate, consistent results from ultra-thin decorative coatings to industrial-grade protection layers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible with an array of specialized probes, the CTN-300 handles ferrous, non-ferrous and aluminum substrates as well as complex curved surfaces such as pipes, screws and small components.\u003c\/strong\u003e Its broad measurement range and robust feature set make it suitable for manufacturing quality control, metal processing inspection, plating and anodizing verification, and corrosion protection checks in demanding industrial environments.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtensive Measurement Range\u003c\/strong\u003e\u003cbr\u003eSupports coating thickness measurement from 0.003 mm (3 µm) up to 13 mm (13,000 µm), covering a wide spectrum of coating types and thicknesses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Probe Compatibility\u003c\/strong\u003e\u003cbr\u003eWorks with up to 13 dedicated probes including magnetic, non-magnetic, high-temperature and right-angle variants for maximum versatility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnetic Induction \u0026amp; Eddy Current Technologies\u003c\/strong\u003e\u003cbr\u003eAutomatically detects substrate type (ferrous or non-ferrous) and applies the correct measurement principle for accurate results.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Precision \u0026amp; Intelligent Calibration\u003c\/strong\u003e\u003cbr\u003eAdvanced sensing algorithms and automatic calibration routines provide reliable, repeatable measurements with minimal user setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Measurement Modes\u003c\/strong\u003e\u003cbr\u003eSupports single measurement, continuous scan and statistical functions (average, max, min, count, standard deviation) for flexible inspection workflows.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Data Handling\u003c\/strong\u003e\u003cbr\u003eBuilt-in data storage with export capability and high\/low limit alarms for quality control and reporting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePortable \u0026amp; Field Rated\u003c\/strong\u003e\u003cbr\u003eDurable metal housing and rechargeable lithium-ion battery support extended use in workshop and field environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial painting and powder coating inspection\u003c\/li\u003e\n\u003cli\u003ePlating, anodizing and surface treatment verification\u003c\/li\u003e\n\u003cli\u003eAutomotive and aerospace coating quality control\u003c\/li\u003e\n\u003cli\u003eMarine and shipbuilding corrosion protection monitoring\u003c\/li\u003e\n\u003cli\u003eManufacturing and fabrication process inspection\u003c\/li\u003e\n\u003cli\u003eGeneral laboratory and materials research\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat’s Included\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCTN-300 gauge main unit\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCalibration foil set\u003c\/li\u003e\n\u003cli\u003eCarrying case\u003c\/li\u003e\n\u003cli\u003eCharging cable\u003c\/li\u003e\n\u003cli\u003eUser manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-family: Arial, sans-serif;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 8px; font-weight: bold; width: 35%;\"\u003eMeasurement Principle\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 8px;\"\u003eMagnetic induction and eddy current (automatic substrate detection)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 8px; font-weight: bold;\"\u003eMeasurement Range\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 8px;\"\u003eUp to 13 mm (13,000 µm) depending on probe configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 8px; font-weight: bold;\"\u003eResolution\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 8px;\"\u003e0.1 µm (all probes):contentReference[oaicite:9]{index=9}\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 8px; font-weight: bold;\"\u003eDisplay Mode\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 8px;\"\u003eNumerical readout with high contrast LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 8px; font-weight: bold;\"\u003eStatistical Functions\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 8px;\"\u003eAverage, Maximum, Minimum, Count, Standard Deviation:contentReference[oaicite:10]{index=10}\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 8px; font-weight: bold;\"\u003eOperational Modes\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 8px;\"\u003eDirect measurement, Continuous scan:contentReference[oaicite:11]{index=11}\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 8px; font-weight: bold;\"\u003eData Storage\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 8px;\"\u003e10 groups, 1000 readings total:contentReference[oaicite:12]{index=12}\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 8px; font-weight: bold;\"\u003ePower Supply\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 8px;\"\u003eRechargeable lithium-ion battery:contentReference[oaicite:13]{index=13}\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 8px; font-weight: bold;\"\u003eProbe Connection\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 8px;\"\u003eDetachable cable (interchangeable probes):contentReference[oaicite:14]{index=14}\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eDownloads\u003c\/h4\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e \u003ca rel=\"noopener\" title=\"BRK BT Series Datasheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/BT-T_Series_Through-Coating_Thickness_Gauge.pdf\" target=\"_blank\"\u003e \u003c\/a\u003e\u003ca title=\"BRK CTN Series Datasheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/CTN-300_Coating_Thickness_Gauge.pdf\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/pdf-icon-63x63_480x480.png\" style=\"float: left;\" alt=\"PDF\"\u003e \u003c\/a\u003e\u003ca rel=\"noopener\" title=\"BRK BT Series Datasheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/BT-T_Series_Through-Coating_Thickness_Gauge.pdf\" target=\"_blank\"\u003e\u003cbr\u003e\u003c\/a\u003e\u003ca title=\"BRK CTN Series Datasheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/CTN-300_Coating_Thickness_Gauge.pdf\" target=\"_blank\"\u003eBRK CTN-300 Series Datasheet\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"BRK BT Series Datasheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/BT-T_Series_Through-Coating_Thickness_Gauge.pdf\" target=\"_blank\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"BRK BT Series Datasheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/BT-T_Series_Through-Coating_Thickness_Gauge.pdf\" target=\"_blank\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"BRK BT Series Datasheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/BT-T_Series_Through-Coating_Thickness_Gauge.pdf\" target=\"_blank\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/a\u003e\u003c\/strong\u003e\n\u003cdiv\u003e\n\u003ca rel=\"noopener\" title=\"BRK CTN-300 Series Datasheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/CTN-300_Coating_Thickness_Gauge_User_Manual.pdf\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/pdf-icon-63x63_480x480.png\" style=\"float: left;\" alt=\"PDF\"\u003e \u003c\/a\u003e\u003cbr\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" title=\"BRK CTN-300 Series Datasheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/CTN-300_Coating_Thickness_Gauge_User_Manual.pdf\" target=\"_blank\"\u003eBRK CTN-300 Series Users Manual\u003c\/a\u003e\u003c\/strong\u003e\u003cbr\u003e\u003ca rel=\"noopener\" title=\"BRK BT Series Datasheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/BT-T_Series_Through-Coating_Thickness_Gauge.pdf\" target=\"_blank\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cstrong\u003e\u003ca rel=\"noopener\" title=\"BRK BT Series Datasheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/BT-T_Series_Through-Coating_Thickness_Gauge.pdf\" target=\"_blank\"\u003e\u003cbr\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003ch4\u003eProbes\u003c\/h4\u003e\n\u003cstyle\u003e\n\n.ctn-probe-section{\nmax-width:1200px;\nmargin:auto;\nfont-family:Arial, Helvetica, sans-serif;\n}\n\n.ctn-grid{\ndisplay:grid;\ngrid-template-columns:repeat(3,1fr);\ngap:26px;\n}\n\n@media (max-width:900px){\n.ctn-grid{grid-template-columns:repeat(2,1fr);}\n}\n\n@media (max-width:600px){\n.ctn-grid{grid-template-columns:1fr;}\n}\n\n.ctn-card{\nborder:1px solid #e5e5e5;\nborder-radius:10px;\nbackground:#fff;\npadding:20px;\ntext-align:center;\ntransition:.25s ease;\ndisplay:flex;\nflex-direction:column;\n}\n\n.ctn-card:hover{\nbox-shadow:0 10px 28px rgba(0,0,0,.08);\ntransform:translateY(-4px);\n}\n\n.ctn-image{\noverflow:hidden;\n}\n\n.ctn-image img{\nwidth:100%;\nheight:220px;\nobject-fit:contain;\ntransition:transform .3s ease;\n}\n\n.ctn-card:hover img{\ntransform:scale(1.07);\n}\n\n.ctn-title{\nfont-size:17px;\nfont-weight:600;\nmargin-top:12px;\n}\n\n.ctn-part{\nfont-size:13px;\ncolor:#666;\nmargin-top:4px;\n}\n\n.ctn-desc{\nfont-size:14px;\ncolor:#444;\nmargin-top:8px;\nline-height:1.4;\n}\n\n\u003c\/style\u003e\n\u003cdiv class=\"ctn-probe-section\"\u003e\n\u003cdiv class=\"ctn-grid\"\u003e\n\u003cdiv class=\"ctn-card\"\u003e\n\u003cdiv style=\"text-align: center;\" class=\"ctn-image\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/products\/fe-probe-for-ctn-300-coating-thickness-gauge\" target=\"_blank\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/probe_F1-90.jpg?v=1772492196\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ctn-title\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/products\/fe-probe-for-ctn-300-coating-thickness-gauge\" target=\"_blank\"\u003eFe Magnetic Probe\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ctn-part\"\u003ePart Number: Fe\u003c\/div\u003e\n\u003cdiv class=\"ctn-desc\"\u003eMagnetic induction probe for measuring coating thickness on ferrous substrates such as steel and iron. Ideal for paint, plating and corrosion protection coatings.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ctn-card\"\u003e\n\u003cdiv class=\"ctn-image\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/products\/fe-high-temperature-probe-for-ctn-300-coating-thickness-gauge\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Fe High Temperature Probe\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/CTN-300-Probes_Fe_High-Temperature.jpg\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ctn-title\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/products\/fe-high-temperature-probe-for-ctn-300-coating-thickness-gauge\" rel=\"noopener\" target=\"_blank\"\u003eFe High-Temperature Probe\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ctn-part\"\u003ePart Number: Fe-HT\u003c\/div\u003e\n\u003cdiv class=\"ctn-desc\"\u003eDesigned for coating measurements on hot ferrous surfaces during production processes such as galvanizing and powder coating.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ctn-card\"\u003e\n\u003cdiv style=\"text-align: center;\" class=\"ctn-image\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/products\/nfe-probe-for-ctn-300-coating-thickness-gauge\" target=\"_blank\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"NFe Probe\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/nfe-eddy-current-probe-for-ctn-300-coating-thickness-gauge-9684456.jpg\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ctn-title\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/products\/nfe-probe-for-ctn-300-coating-thickness-gauge\" target=\"_blank\"\u003eNFe Eddy Current Probe\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ctn-part\"\u003ePart Number: NFe\u003c\/div\u003e\n\u003cdiv class=\"ctn-desc\"\u003eEddy current probe for coating thickness measurement on non-ferrous metals including aluminum, copper and brass.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ctn-card\"\u003e\n\u003cdiv class=\"ctn-image\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/products\/nfe-high-temperature-probe-for-ctn-300-coating-thickness-gauge\" target=\"_blank\"\u003e\u003cimg alt=\"NFe High Temperature Probe\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/CTN-300-Probes_NFe_High-Temperature.jpg\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ctn-title\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/products\/nfe-high-temperature-probe-for-ctn-300-coating-thickness-gauge\" target=\"_blank\"\u003eNFe High-Temperature Probe\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ctn-part\"\u003ePart Number: NFe-HT\u003c\/div\u003e\n\u003cdiv class=\"ctn-desc\"\u003eHigh-temperature eddy current probe for coating inspection on heated non-ferrous metals such as aluminum components.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ctn-card\"\u003e\n\u003cdiv class=\"ctn-image\" style=\"text-align: center;\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/products\/n400-probe-for-ctn-300-coating-thickness-gauge\" target=\"_blank\"\u003e\u003cimg alt=\"N400 Probe for CTN-300 Coating Thickness Gauge by BRK, featuring a silver metal finish and knurled texture.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/n400-probe-for-ctn-300-coating-thickness-gauge-brk-n400-probe-1538174.jpg?v=1772761749\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/sperdirect.com\/products\/n400-probe-for-ctn-300-coating-thickness-gauge\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ctn-title\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/products\/n400-probe-for-ctn-300-coating-thickness-gauge\" rel=\"noopener\" target=\"_blank\"\u003eN400 Probe\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ctn-part\"\u003ePart Number: N400\u003c\/div\u003e\n\u003cdiv class=\"ctn-desc\"\u003ePrecision eddy current probe designed for accurate measurement of thin coatings on non-ferrous substrates.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ctn-card\"\u003e\n\u003cdiv class=\"ctn-image\" style=\"text-align: center;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/products\/n3-probe-for-ctn-300-coating-thickness-gauge\" target=\"_blank\"\u003e\u003cimg alt=\"N3 Probe\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/CTN-300-Probes_N3.jpg\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ctn-title\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/products\/n3-probe-for-ctn-300-coating-thickness-gauge\" target=\"_blank\"\u003eN3 Probe\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ctn-part\"\u003ePart Number: N3\u003c\/div\u003e\n\u003cdiv class=\"ctn-desc\"\u003eExtended-range probe for measuring thicker coatings on aluminum and other non-magnetic substrates.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ctn-card\"\u003e\n\u003cdiv class=\"ctn-image\" style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/products\/f3-probe-for-ctn-300-coating-thickness-gauge\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/probe_F3.jpg?v=1772492196\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ctn-title\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/products\/f3-probe-for-ctn-300-coating-thickness-gauge\" rel=\"noopener\" target=\"_blank\"\u003eF3 Magnetic Probe\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ctn-part\"\u003ePart Number: F3\u003c\/div\u003e\n\u003cdiv class=\"ctn-desc\"\u003eMagnetic probe designed for measuring thicker protective coatings on steel including epoxy and powder coatings.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ctn-card\"\u003e\n\u003cdiv class=\"ctn-image\" style=\"text-align: center;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/products\/f3-high-temperature-probe-for-ctn-300-coating-thickness-gauge\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/f3-high-temperature-probe-for-ctn-300-coating-thickness-gauge-brk-f3-h-probe-3195911.jpg?v=1772761749\" alt=\"High-temperature probe for CTN-300 coating thickness gauge by BRK with a black head and metal ribbed cylindrical body.\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ctn-title\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/products\/f3-high-temperature-probe-for-ctn-300-coating-thickness-gauge\" target=\"_blank\"\u003eF3 High-Temperature Probe\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ctn-part\"\u003ePart Number: F3-HT\u003c\/div\u003e\n\u003cdiv class=\"ctn-desc\"\u003eHigh-temperature version of the F3 probe for measuring thick coatings on heated steel components.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ctn-card\"\u003e\n\u003cdiv style=\"text-align: center;\" class=\"ctn-image\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/products\/f5-probe-for-ctn-300-coating-thickness-gauge\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/probe_F5.jpg?v=1772492196\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ctn-title\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/products\/f5-probe-for-ctn-300-coating-thickness-gauge\" rel=\"noopener\" target=\"_blank\"\u003eF5 Magnetic Probe\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ctn-part\"\u003ePart Number: F5\u003c\/div\u003e\n\u003cdiv class=\"ctn-desc\"\u003eWide-range probe designed for heavy protective coatings and thick industrial paint layers on steel.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ctn-card\"\u003e\n\u003cdiv class=\"ctn-image\" style=\"text-align: center;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/products\/f10-probe-for-ctn-300-coating-thickness-gauge\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/probe_F10.jpg?v=1772492196\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ctn-title\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/products\/f10-probe-for-ctn-300-coating-thickness-gauge\" target=\"_blank\"\u003eF10 Magnetic Probe\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ctn-part\"\u003ePart Number: F10\u003c\/div\u003e\n\u003cdiv class=\"ctn-desc\"\u003eExtra-wide range probe capable of measuring extremely thick coatings and insulation layers.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ctn-card\"\u003e\n\u003cdiv class=\"ctn-image\" style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/products\/f400-probe-for-ctn-300-coating-thickness-gauge\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/CTN-300-Probes_Fe_NFe_probes_2in1.jpg?v=1772733466\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ctn-title\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/products\/f400-probe-for-ctn-300-coating-thickness-gauge\" rel=\"noopener\" target=\"_blank\"\u003eF400 Magnetic Probe\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ctn-part\"\u003ePart Number: F400\u003c\/div\u003e\n\u003cdiv class=\"ctn-desc\"\u003e\n\u003cp\u003eCompact magnetic probe designed for precise measurement of thin coatings on ferrous substrates such as steel and iron.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ctn-card\"\u003e\n\u003cdiv style=\"text-align: center;\" class=\"ctn-image\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/products\/f05-f500-probe-for-ctn-300-coating-thickness-gauge\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/f500-magnetic-probe-for-ctn-300-coating-thickness-gauge-brk-f500-probe-5619456.jpg?v=1772761748\" alt=\"Magnetic probe for CTN-300 Coating Thickness Gauge by BRK, featuring a ribbed metal barrel and black cable.\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/sperdirect.com\/products\/f05-f500-probe-for-ctn-300-coating-thickness-gauge\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ctn-title\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/products\/f05-f500-probe-for-ctn-300-coating-thickness-gauge\" target=\"_blank\"\u003eF500 Probe\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"ctn-part\"\u003ePart Number: F500\u003c\/div\u003e\n\u003cdiv class=\"ctn-desc\"\u003eHigh-precision probe optimized for measuring thin coatings on small steel components.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\n\u003ch4\u003eComparison Chart\u003c\/h4\u003e\n\u003ctable style=\"width: 127.45098%; border-collapse: collapse; font-family: Arial, sans-serif; height: 1043px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 57px;\"\u003e\n\u003cth style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; text-align: left; background: rgb(245, 245, 245); height: 57px; width: 14.157014%;\"\u003eCoating Thickness Gauges\u003c\/th\u003e\n\u003cth style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; text-align: left; background: rgb(245, 245, 245); height: 57px; width: 15.444015%;\"\u003e\u003ca rel=\"noopener\" title=\"BRK BT-T7A Through Coating Ultrasonic Thickness Gauge\" href=\"https:\/\/sperdirect.com\/collections\/brk\/products\/ctn-210b-coating-thickness-gauge-1\" target=\"_blank\"\u003eCTN-210B\u003c\/a\u003e\u003c\/th\u003e\n\u003cth style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; text-align: left; background: rgb(245, 245, 245); height: 57px; width: 15.444015%;\"\u003e\u003ca rel=\"noopener\" title=\"BRK CTN-210C Coating Thickness Gauge\" href=\"https:\/\/sperdirect.com\/collections\/brk\/products\/ctn-210c-coating-thickness-gauge\" target=\"_blank\"\u003eCTN-210C\u003c\/a\u003e\u003c\/th\u003e\n\u003cth style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; text-align: left; background: rgb(245, 245, 245); width: 15.444015%;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/products\/ctn-230-coating-thickness-gauge\" rel=\"noopener\" target=\"_blank\"\u003eCTN-230\u003c\/a\u003e\u003c\/th\u003e\n\u003cth style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; text-align: left; background: rgb(245, 245, 245); height: 57px; width: 15.444015%;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/brk\/products\/ctn-300-coating-thickness-gauge\" title=\"BRK CTN-300 Coating Thickness Gauge\"\u003eCTN-300\u003c\/a\u003e\u003c\/th\u003e\n\u003cth style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; text-align: left; background: rgb(245, 245, 245); height: 57px; width: 13.770914%;\"\u003e\u003ca rel=\"noopener\" title=\"BRK BT-T7 Through Coating Ultrasonic Thickness Gauge\" href=\"https:\/\/sperdirect.com\/collections\/brk\/products\/through-coating-ultrasonic-thickness-gauge\" target=\"_blank\"\u003eBT-T7\u003c\/a\u003e\u003c\/th\u003e\n\u003cth style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; text-align: left; background: rgb(245, 245, 245); height: 57px; width: 10.29601%;\"\u003e\u003ca rel=\"noopener\" title=\"BRK BT-T7A Through Coating Ultrasonic Thickness Gauge\" href=\"https:\/\/sperdirect.com\/collections\/brk\/products\/through-coating-ultrasonic-thickness-gauge-copy\" target=\"_blank\"\u003eBT-T7A\u003c\/a\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 114px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; font-weight: 600; height: 114px; width: 14.157014%;\"\u003eType \/ Principle\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 114px; width: 15.444015%;\"\u003eMagnetic induction \u0026amp; eddy current coating gauge\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 114px; width: 15.444015%;\"\u003eMagnetic induction \u0026amp; eddy current coating gauge\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; width: 15.444015%;\"\u003e\n\u003cp\u003eMagnetic induction \u0026amp; eddy current coating gauge.               \u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 114px; width: 15.444015%;\"\u003eMagnetic induction \u0026amp; eddy current coating gauge, multi-probe system\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 114px; width: 13.770914%;\"\u003eThrough-coating ultrasonic thickness gauge\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 114px; width: 10.29601%;\"\u003eThrough-coating ultrasonic thickness gauge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 95px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; font-weight: 600; height: 95px; width: 14.157014%;\"\u003eMeasurement Range\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 95px; width: 15.444015%;\"\u003eProbe dependent, up to 0–10,000 μm\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 95px; width: 15.444015%;\"\u003eProbe dependent, micron to millimeter range\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; width: 15.444015%;\"\u003e\n\u003cmeta charset=\"UTF-8\"\u003e \u003cspan\u003eTypically up to ~1250 µm\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 95px; width: 15.444015%;\"\u003eProbe dependent, up to 13 mm (13,000 μm) depending on probe\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 95px; width: 13.770914%;\"\u003e0.7–500 mm (standard mode, steel)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 95px; width: 10.29601%;\"\u003e0.7–350 mm (standard mode, steel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 133px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; font-weight: 600; height: 133px; width: 14.157014%;\"\u003eThrough-Coating Capability\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 133px; width: 14%;\"\u003eMeasures coating thickness only\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 133px; width: 14%;\"\u003eMeasures coating thickness only\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; width: 15.444015%;\"\u003eMeasures coating thickness only\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 133px; width: 14%;\"\u003eMeasures coating thickness only\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 133px; width: 14%;\"\u003eMeasures substrate thickness through coatings up to 5 mm\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 133px; width: 14%;\"\u003eMeasures substrate thickness through coatings up to 3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 57px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; font-weight: 600; height: 57px; width: 14.157014%;\"\u003eResolution\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 57px; width: 15.444015%;\"\u003e0.1–1 μm depending on probe\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 57px; width: 15.444015%;\"\u003e0.1–1 μm depending on probe\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; width: 15.444015%;\"\u003e\n\u003cmeta charset=\"UTF-8\"\u003e \u003cspan\u003eUp to 0.1 µm depending on probe\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 57px; width: 15.444015%;\"\u003eUp to 0.1 μm depending on probe\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 57px; width: 13.770914%;\"\u003e0.01 mm\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 57px; width: 10.29601%;\"\u003e0.01 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 76px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; font-weight: 600; height: 76px; width: 14.157014%;\"\u003eAccuracy\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 76px; width: 15.444015%;\"\u003eTypically ±(2%H + 1 μm) after calibration\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 76px; width: 15.444015%;\"\u003eTypically ±(1%H + 1 μm) after calibration\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; width: 15.444015%;\"\u003e\n\u003cmeta charset=\"UTF-8\"\u003e \u003cspan\u003eApprox. ±(1–3%) after calibration\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 76px; width: 15.444015%;\"\u003eProbe dependent, industrial QC grade\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 76px; width: 13.770914%;\"\u003e±(0.6%H + 0.05) mm\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 76px; width: 10.29601%;\"\u003e±(0.6%H + 0.1) mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 114px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; font-weight: 600; height: 114px; width: 14.157014%;\"\u003eProbe Support\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 114px; width: 15.444015%;\"\u003eMultiple interchangeable probes\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 114px; width: 15.444015%;\"\u003eMultiple interchangeable probes\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; width: 15.444015%;\"\u003eMultiple interchangeable probes\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 114px; width: 15.444015%;\"\u003eMultiple interchangeable probes\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 114px; width: 13.770914%;\"\u003eStandard, micro, coarse and high-temp probes\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 114px; width: 10.29601%;\"\u003eStandard, micro, coarse and high-temp probes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 76px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; font-weight: 600; height: 76px; width: 14.157014%;\"\u003eData Handling\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 76px; width: 15.444015%;\"\u003eGroup storage with PC export\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 76px; width: 15.444015%;\"\u003eInternal memory with USB\/RS232 export\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; width: 15.444015%;\"\u003eGroup storage with PC export\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 76px; width: 15.444015%;\"\u003eData storage with statistical functions\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 76px; width: 13.770914%;\"\u003eStandard thickness readout\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 76px; width: 10.29601%;\"\u003eStandard thickness readout\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 76px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; font-weight: 600; height: 76px; width: 14.157014%;\"\u003ePower Supply\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 76px; width: 15.444015%;\"\u003eRechargeable lithium battery\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 76px; width: 15.444015%;\"\u003eRechargeable battery\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; width: 15.444015%;\"\u003eAA Batteries\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 76px; width: 15.444015%;\"\u003eRechargeable lithium-ion battery\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 76px; width: 13.770914%;\"\u003eRechargeable Li-ion battery, 160+ hrs typical\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 76px; width: 10.29601%;\"\u003eAA batteries, 50+ hrs typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 114px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; font-weight: 600; height: 114px; width: 14.157014%;\"\u003ePrimary Use Case\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 114px; width: 15.444015%;\"\u003eIndustrial coating thickness measurement\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 114px; width: 15.444015%;\"\u003eAdvanced coating inspection with data functions\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; width: 15.444015%;\"\u003eIndustrial coating thickness measurement\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 114px; width: 15.444015%;\"\u003eHigh-end multi-probe coating inspection\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 114px; width: 13.770914%;\"\u003eSubstrate thickness through coatings\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(221, 221, 221); padding: 8px; height: 114px; width: 10.29601%;\"\u003eSubstrate thickness through coatings, mid-range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4 style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003c\/div\u003e","brand":"BRK","offers":[{"title":"Default Title","offer_id":48850565595360,"sku":"CTN-300","price":461.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/ctn-300-coating-thickness-gauge-ctn-300-3135972.jpg?v=1772761755","url":"https:\/\/sperdirect.com\/products\/ctn-300-coating-thickness-gauge","provider":"Sper Scientific Direct","version":"1.0","type":"link"}