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HVAC + Refrigeration

Optimize airflow and diagnose system performance with precision instruments built for HVAC/R professionals.

Sper Scientific tools help you reduce energy costs, improve occupant comfort, and maintain building safety.

  • Airflow & Anemometers: Measure air velocity and volume flow to balance duct systems and verify ventilation performance.
  • Temperature & Humidity: Hygrometers and psychrometers for ambient condition monitoring, dew point analysis, and moisture control.
  • Thermal Imaging: Infrared cameras and thermometers to detect heat loss, insulation gaps, refrigerant leaks, and equipment hot spots.
  • Pressure & Differential: Manometers and differential pressure meters to measure static pressure, room relationships, and filter resistance.
  • Refrigeration Diagnostics: Temperature and pressure tools for verifying refrigerant charge, superheat, and subcooling.

From system commissioning and HVAC balancing to predictive maintenance and energy audits, Sper Scientific delivers the measurement accuracy HVAC/R technicians depend on.

HVAC + Refrigeration | Sper Scientific Direct

161 products

PM3 | Pocket Digital Multimeter with Folding Case - Sanwa-America.com

Sanwa

PM3

PM3 | Pocket Digital Multimeter with Folding Case

Regular price $52.50 USD
Sale price Regular price
PDR4000 | Portable Digital Earth Tester - Sanwa-America.com

Sanwa

PDR4000

PDR4000 | Portable Digital Earth Tester

Regular price $295.83 USD
Sale price Regular price
PDR302 | Portable Earth Tester with Phase Detection - Sanwa-America.com

Sanwa

PDR302

PDR302 | Portable Earth Tester with Phase Detection

Regular price $443.12 USD
Sale price Regular price
PDM5219S-125V-250V-500V-Analog-Insulation-Tester-Portable-Insulation-Resistance-Meter | Sanwa-America.com

Sanwa

PDM5219S

PDM5219S | 125V / 250V / 500V Analog Insulation Tester / Portable Insulation Resistance Meter

Regular price $287.13 USD
Sale price Regular price
PDM1529S-1000V-500V-250V-Analog-Insulation-Tester-Portable-Insulation-Resistance-Meter | Sanwa-America.com

Sanwa

PDM1529S

PDM1529S | 1000V / 500V / 250V Analog Insulation Tester / Portable Insulation Resistance Meter

Regular price $284.11 USD
Sale price Regular price
PDM509S | Analog Insulation Tester 500V / 100MΩ Single Range - Sanwa-America.com

Sanwa

PDM509S

PDM509S | Analog Insulation Tester 500V / 100MΩ Single Range

Regular price $190.08 USD
Sale price Regular price
PC710 | Digital Multimeter with True RMS and Dual Display - Sanwa-America.com

Sanwa

PC710

PC710 | Digital Multimeter with True RMS and Dual Display

Regular price $303.05 USD
Sale price Regular price
PC20 | Digital Multimeter with PC Link - Sanwa-America.com

Sanwa

PC20

PC20 | Digital Multimeter with PC Link

Regular price $149.16 USD
Sale price Regular price
MG5000 | Digital Insulation Tester High voltage type - Sanwa-America.com

Sanwa

MG5000

MG5000 | High Voltage Digital Insulation Tester

Regular price $852.55 USD
Sale price Regular price
MG1000 | Digital Insulation Tester Dustproof + Splashproof IP54 Design - Sanwa-America.com

Sanwa

MG1000

MG1000 | Digital Insulation Tester Dustproof + Splashproof IP54 Design

Regular price $236.30 USD
Sale price Regular price
MG500 | Digital Insulation Tester Dustproof + Splashproof IP54 Design - Sanwa-America.com

Sanwa

MG500

MG500 | Digital Insulation Tester Dustproof + Splashproof IP54 Design

Regular price $228.46 USD
Sale price Regular price
LX20 | Illuminance Meter - Sanwa-America.com

Sanwa

LX20

LX20 | Illuminance Meter

Regular price $211.00 USD
Sale price Regular price
KS3 | 3 Phase / Rotation Motor Detector - Sanwa-America.com

Sanwa

KS3

KS3 | 3 Phase / Rotation Motor Detector

Regular price $239.42 USD
Sale price Regular price
KS1 | 3 Phase Detector - Contact Type - Sanwa-America.com

Sanwa

KS1

KS1 | 3 Phase Detector - Contact Type

Regular price $80.17 USD
Sale price Regular price
KP1 | CAT IV Volt tester - Sanwa-America.com

Sanwa

KP1

KP1 | CAT IV Volt tester

Regular price $161.59 USD
Sale price Regular price
KDP10 | Voltage Detector / Supporter - Sanwa-America.com

Sanwa

KDP10

KDP10 | Voltage Detector / Supporter

Regular price $98.32 USD
Sale price Regular price
EM7000 | Analog Multimeter - High Sensitivity FET for Measurement of Lower Capacitance - Sanwa-America.com

Sanwa

EM7000

EM7000 | Analog Multimeter - High Sensitivity FET for Measurement of Lower Capacitance

Regular price $141.79 USD
Sale price Regular price
DM1009S | 1000V Analog Insulation Tester / Portable Insulation Resistance Meter - Sanwa-America.com

Sanwa

DM1009S

DM1009S | 1000V Analog Insulation Tester / Portable Insulation Resistance Meter

Regular price $203.10 USD
Sale price Regular price
DM509S | 500V Analog Insulation Tester / Portable Insulation Resistance Meter - Sanwa-America.com

Sanwa

DM509S

DM509S | 500V Analog Insulation Tester / Portable Insulation Resistance Meter

Regular price $185.97 USD
Sale price Regular price
DCL460F | Multifunctional Leakage Clamp Meter - Sanwa-America.com

Sanwa

DLC460F

DLC460F | Multifunctional Leakage Clamp Meter

Regular price $479.60 USD
Sale price Regular price
DCM2000DR | Clamp Meter AC/DC Max Current 2000A - CAT IV 1000V - Sanwa-America.com

Sanwa

DCM2000DR

DCM2000DR | Clamp Meter AC/DC Max Current 2000A - CAT IV 1000V

Regular price $349.80 USD
Sale price Regular price
DCM660R | True RMS Clamp Meter for Electrical and HVAC Work + DMM Functions - Sanwa-America.com

Sanwa

DCM660R

DCM660R | True RMS Clamp Meter for Electrical and HVAC Work + DMM Functions

Regular price $175.25 USD
Sale price Regular price
DCM600DR | Clamp Meter for Automotive Hybrid / Electric Vehicle + DMM Functionality - Sanwa-America.com

Sanwa

DCM600DR

DCM600DR | Clamp Meter for Automotive Hybrid / Electric Vehicle + DMM Functionality

Regular price $217.80 USD
Sale price Regular price
DCM400 | Basic Digital Clamp Meter with Multimeter Functionality - Sanwa-America.com

Sanwa

DCM400

DCM400 | Basic Digital Clamp Meter with Multimeter Functionality

Regular price $114.10 USD
Sale price Regular price
DCL3000R | True RMS AC Clamp Meter with Flexible Conductor - Sanwa-America.com

Sanwa

DCL3000R

DCL3000R | True RMS AC Clamp Meter with Flexible Conductor

Regular price $326.70 USD
Sale price Regular price
DCL31DR | Mini AC/DC Clamp Meter with True RMS and Peak Hold - Sanwa-America.com

Sanwa

DCL31DR

DCL31DR | Mini AC/DC Clamp Meter with True RMS and Peak Hold

Regular price $230.33 USD
Sale price Regular price
DCL11R | True RMS Mini Clamp Meter with Backlight - Sanwa-America.com

Sanwa

DCL11R

DCL11R | True RMS Mini Clamp Meter with Backlight

Regular price $150.21 USD
Sale price Regular price
DCL1000 | AC Clamp Meter Large Diameter CT 1000A - Sanwa-America.com

Sanwa

DCL1000

DCL1000 | AC Clamp Meter Large Diameter CT 1000A

Regular price $100.43 USD
Sale price Regular price
CX506a | Analog Multimeter with Capacitance Measurement and Built-in Transistor Oscillator - Sanwa-America.com

Sanwa

CX506a

CX506a | Analog Multimeter with Capacitance Measurement and Built-in Transistor Oscillator

Regular price $136.50 USD
Sale price Regular price
CD800a | Digital Multimeter with Tough Body Cover - Sanwa-America.com

Sanwa

CD800a

CD800a | CD800a2 | CD800a3 | Digital Multimeter with Tough Body Cover

Regular price From $76.76 USD
Sale price Regular price
CD771 | Digital Multimeter with Backlight & Continuity Buzzer with LED - Sanwa-America.com

Sanwa

CD771

CD771 | Digital Multimeter with Backlight & Continuity Buzzer with LED

Regular price $113.44 USD
Sale price Regular price
CD732 | Digital Multimeter with High-Speed Bar Graph & Continuity Buzzer with LED - Sanwa-America.com

Sanwa

CD732

CD732 | Digital Multimeter with High-Speed Bar Graph & Continuity Buzzer with LED

Regular price $152.52 USD
Sale price Regular price
AC clamp meter by Sanwa, showing a digital display and a red clamp.

Sanwa

DCM301

DCM301 | AC Clamp Meter with Multimeter Functionality

Regular price $112.70 USD
Sale price Regular price
Pocket digital multimeter with 4000 count display by Sanwa, featuring a gray case, a rotary selector, and test leads.

Sanwa

PM11

PM11 | Pocket Digital Multimeter with 4000 Count Display

Regular price $102.63 USD
Sale price Regular price
Blue digital multimeter with continuity buzzer by Sanwa, displaying "400.0 mV" and featuring multiple setting buttons.

Sanwa

CD770

CD770 | Digital Multimeter with Continuity Buzzer

Regular price $85.94 USD
Sale price Regular price
YX360TRF | Analog Multimeter with Built-In Case - Sanwa-America.com

Sanwa

YX360TRF

YX360TRF | Analog Multimeter with Built-In Case

Regular price $61.60 USD
Sale price Regular price