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Water Quality

Water quality meters provide fast, reliable measurement of key parameters including pH, conductivity, TDS, salinity, dissolved oxygen, turbidity, ORP and temperature.

These instruments help users evaluate water conditions, identify changes and maintain consistent quality across environmental, laboratory, industrial, agricultural, food and beverage, and water treatment applications.

Sper Scientific Direct offers water quality instruments ranging from compact pocket testers and portable multi-parameter meters and dataloggers to complete online systems and professional water quality analyzers. Choose from single-parameter meters, expandable systems, complete testing kits, probes, sensors and calibration solutions for field measurements, routine quality control and detailed water analysis.

A white Sper Scientific handheld water quality meter with a green LCD showing 6.76 pH and 25.0 °C, and various gray control buttons.

121 products

HR+ COD Vials Mercury-Free (98 Count)

CHEMetrics

SPSK-7376

HR+ COD Vials 0-15,000ppm HR+ Mercury-free (100 Count)

Regular price $181.72 USD
Sale price Regular price
Hi Range Iron Test Kit

CHEMetrics

SPSK-6020A

Hi Range Iron Test Kit

Regular price $97.09 USD
Sale price Regular price
Iron Test Strips 3-500ppm

Hach

SPS10004-1

Iron Test Strips 3-500ppm, 0-3-10-25-50-100-250-500ppm

Regular price $132.97 USD
Sale price Regular price
Iron (Total and Soluble) Test Kit

CHEMetrics

SPSK-6010

Iron (Total and Soluable) Test Kit

Regular price $109.78 USD
Sale price Regular price
LR COD Vials Mercury-Free

CHEMetrics

SPSK-7356

LR COD Vials Mercury-Free Method: Dichromate Reactor Digestion

Regular price $272.33 USD
Sale price Regular price
Low Range COD Vials

CHEMetrics

SPSK-7355

Low Range COD Vials - US EPA Accepted

Regular price $272.33 USD
Sale price Regular price
Nitrite HR Test Kit (0-250 ppm)

CHEMetrics

SPSK-7020B

Nitrite High Range Test Kit (0-250 ppm)

Regular price $96.58 USD
Sale price Regular price
Nitrite Test Strips MQuant

Merck/MQuant

SPS10007-1

Nitrite Test Strips -2-80ppm

Regular price $140.44 USD
Sale price Regular price
Dissolved Oxygen Test Kit (1-12 ppm)

CHEMetrics

SPSK-7512

Dissolved Oxygen Test Kit (1-12 ppm)

Regular price $84.53 USD
Sale price Regular price
Dissolved Oxygen Test Kit (0-1 ppm)

CHEMetrics

SPSK-7501

Dissolved Oxygen Test Kit (0-1ppm)

Regular price $92.98 USD
Sale price Regular price
Ozone Test Strips

SenSafe

SPS481234

Ozone Test Strips

Regular price $46.39 USD
Sale price Regular price
pH test strips by Hydrion in a white container with a blue lid and color gradient indicator.

Hydrion

SPS165

Wide Range pH Test Strips 0-12

Regular price $15.58 USD
Sale price Regular price
pH Test Strips, 0-14

Merck/MQuant

SPS1-09535-0001

Universal pH Test Strips 0-14

Regular price $64.40 USD
Sale price Regular price
Water quality test strips for phosphates by Hach, with unused strips laid out on the surface.

Hach

SPS2757150

Phosphorus Test Strips 0-50ppm

Regular price $53.36 USD
Sale price Regular price
Quat Roll, 0-1000ppm, pHydrion

Hydrion

SPSQC-1001-4PK

Quat Chek 0-1000ppm High-Range Sanitizer / Disinfectant Test Kit (4 pack)

Regular price $46.20 USD
Sale price Regular price
Quat Test Kit - Titrator Version

Hydrion

SPSTK9020-Z

Quat Test Kit - Titrator Version

Regular price $87.44 USD
Sale price Regular price
Quat Test Strips, 0-1000ppm

Sper Scientific

SPS5152

Quat Test Strips 0-1000ppm

Regular price $42.96 USD
Sale price Regular price
Ammonia (Nitrogen) Test Strips

Hach

SPS2755325

Ammonia (Nitrogen) 0-6.0mg/L Test Strips

Regular price $57.98 USD
Sale price Regular price
Test Strips, Free Chlorine, HR

Hach

SPS2890200

Hi Range Free Chlorine Test Strips 0-600mg/l

Regular price $55.72 USD
Sale price Regular price
Zinc colorimetric test strips by Merck/MQuant, displayed in product packaging with color charts and a test strip.

Merck/MQuant

SPS1-17953-0001

Zinc Colorimetric Test Strips

Regular price $174.41 USD
Sale price Regular price
Zinc test kit by Macherey-Nagel, including test tubes, dropper bottles, and color scale in a white box.

Hach

SPS91310

Zinc Test Kit

Regular price $84.96 USD
Sale price Regular price
ATC DO Probe | Sper Scientific Direct

Sper Scientific

850081DO

ATC DO Probe

Regular price $196.90 USD
Sale price Regular price
pH Probe | Sper Scientific Direct

Sper Scientific

840016

pH Probe

Regular price $100.05 USD
Sale price Regular price
Additional Bench Top Probe Holder Arm - Sper Scientific Direct

Sper Scientific

860030H

Additional Bench Top Probe Holder Arm

Regular price $23.00 USD
Sale price Regular price
Conductivity Probe for 850038 Pure Water Meter | Sper Scientific Direct

Sper Scientific

850038P

Conductivity Probe for 850038 Pure Water Meter

Regular price $129.95 USD
Sale price Regular price
ORP Probe | Sper Scientific Direct

Sper Scientific

850088

ORP Probe

Regular price $171.35 USD
Sale price Regular price
Pt Glass Low Conductivity Probe | Sper Scientific Direct

Sper Scientific

850081C/SG

Pt Glass Low Conductivity Probe

Regular price $163.90 USD
Sale price Regular price
Digital pH Pen - Large Display | Sper Scientific Direct

Sper Scientific

850050

Digital pH Pen - Large Display

Regular price From $58.65 USD
Sale price Regular price
Replacement Head with diaphragm for DO Probe | Sper Scientific Direct

Sper Scientific

850089

Replacement Head with Diaphragm for DO Probe

Regular price $13.20 USD
Sale price Regular price
Probe Extension Cable | Sper Scientific Direct

Sper Scientific

800020P

Probe Extension Cable - 5 Foot

Regular price $40.70 USD
Sale price Regular price
Benchtop pH-mV Meter - 0 to 14 pH Range | Sper Scientific Direct

Sper Scientific

860031

Benchtop pH-mV Meter - 0 to 14 pH Range

Regular price $424.35 USD
Sale price Regular price
ATC Conductivity / TDS / Salinity Probe | Sper Scientific Direct

Sper Scientific

850081C/TD

ATC Conductivity / TDS / Salinity Probe

Regular price $68.20 USD
Sale price Regular price
Online Water Hardness Meter

Sper Scientific

870013

Online Water Total Hardness Analyzer

Regular price $8,655.05 USD
Sale price Regular price
Optical Dissolved Oxygen (DO) Probe

Sper Scientific

860067P

Optical Dissolved Oxygen Probe

Regular price $422.00 USD
Sale price Regular price
Black extension cable for dissolved oxygen meter by Sper Scientific with green connectors, bundled together.

Sper Scientific

860067E

10 Foot Extension Cable for Optical Dissolved Oxygen Meter

Regular price $64.50 USD
Sale price Regular price
Adapter cable for optical dissolved oxygen meter by Sper Scientific, showing black wiring and green and black connectors.

Sper Scientific

860067R

Adapter Cable for Optical Dissolved Oxygen Meter

Regular price $18.50 USD
Sale price Regular price