 | Testo 550 Refrigeration System Analyzer Performs accurate temperature, pressure, superheat and sub-cooling measurements on refrigerants | Starting at $299.00 |
 | Testo 875 Series Thermal Imagers Temperature sensitivity of 0.08°C and a high-quality standard lens 32° x 23° | Starting at $2,995.00 |
 | Testo 327 Combustion Analyzer Basic efficiency analyzer for combustion and heating system analysis | Starting at $860.00 |
 | Testo 405 Hot Wire Thermo-Anemometer Economical, highly accurate hot wire thermo-anemometer with telescopic probe | $179.00 |
 | Testo 556 & 560 Refrigeration System Analyzers 4-way, 4-valve manifold with oversize evacuation port (3/8 SAE) | Starting at $999.00 |
 | Testo 881 Series Thermal Imager Thermal resolution of 0.05°C and a high quality standard lens 32° x 23° | Starting at $4,999.00 |
 | Testo 510/511/512 Digital Manometers Testo handheld pressure meters | Starting at $185.00 |
 | Testo 330-1 LL Combustion Analyzer Advanced combustion efficiency analyzers | Starting at $1,995.00 |
 | Testo 425 Thermal Anemometer Hot wire thermo-anemometer and compact air velocity and volume meter with thermal probe | Starting at $629.00 |
 | Testo 174 Temperature & Relative Humidity Datalogger Temperature and relative humidity datalogger with 16,000 memory slots available | Starting at $79.00 |
 | Testo 523 Refrigeration System Analyzer Built-in, 2-way manifold with one button MIN/MAX/HOLD | Starting at $550.00 |
 | Testo 635 Thermo Hygrometer Humidity and temperature meter with wireless and memory options | Starting at $449.00 |
 | Testo 410 Air Velocity Meter Vane anemometer and humidity meter with integrated NTC air thermometer | Starting at $145.00 |
 | Testo 175 Series Datalogger Compact dataloggers for temperature, humidity, voltage and current | Starting at $160.00 |
 | Testo 435 Multifunction HVAC and IAQ Meter Easily measure flow speed, volume flow, air humidity and air temperature in one sequence, perfect for HVAC and IAQ applications | Starting at $595.00 |
 | Testo 416 Mini-Vane Anemometer Vane anemometer with cabled telescopic vane probe | Starting at $659.00 |
 | Testo 605-HX Mini Thermohygrometer Bendable humidity measurement stick | Starting at $135.00 |
 | Testo 610 Air Humidity and Temperature Meter Pocket-sized professional moisture measurement technology | $199.00 |
 | Testo 270 Cooking Oil Tester Tracks the actual breakdown of cooking oil as it is used in frying | $675.00 |
 | Testo 316-1 Gas Leak Detector Reliable natural gas leak detection with flexible probe | $319.00 |
 | Testo 6740 Trace Humidity Sensor Ideal for monitoring compressed air dryers and preventing system damage from condensing water vapor | Starting at $1,211.00 |
 | Testo 6651/6681 Humidity Transmitter High-performance transmitters designed for monitoring critical climate applications in process engineering | Starting at $399.00 |
 | Testo 810 Infrared Thermometer Allows measurement of both air temperature and non-contact surface temperature in one instrument | $135.00 |
 | Testo 317 Series Leak Stick Gas leak sticks with an audible warning for propane, methane and carbon monoxide | Starting at $149.00 |
 | Testo 535 Ambient CO2 Meter Highly accurate 2 channel infrared sensor with a wide measuring range | $879.00 |
 | Testo 400 Reference Meter & Logger Multi-function reference instrument with datalogging and PC communications | $1,965.00 |
 | Testo 625 Thermo Hygrometer Handheld humidity and temperature meter with remote probe or wireless options | Starting at $345.00 |
 | Testo 417 Large Vane Anemometer Vane probe anemometer with built-in 4 inch vane | Starting at $499.00 |
 | Testo 650 Humidity Meter Reference class humidity measuring instrument with an accuracy of ±0.01 AW | Starting at $1,385.00 |
 | Testo 805 Mini IR Thermometer Waterproof infrared thermometer with a measurement range from -25 to +250°C | $85.00 |
 | Testo 826 Series Infrared Thermometer Non-contact infrared thermometer with optional contact probe for food service applications | Starting at $150.00 |
 | Testo 318-V Video PRO Inspection Scope Premier digital inspection scope with video output | Starting at $255.00 |
 | Testo 845 Adjustable Focus Infrared Thermometer Easily shift between close focus and long distance temperature measurement | $959.00 |
 | Testo 606 Moisture Meters Pocket-sized professional moisture measurement technology | Starting at $135.00 |
 | Testo 815/816 Sound Level Meter Class 2L & 3L accuracies with digital noise suppression | Starting at $399.00 |
 | Testo 177 Series Dataloggers Compact dataloggers for temperature and humidity | Starting at $349.00 |
 | Testo 830 Infrared Thermometer Infrared thermometer with adjustable audible and visual alarms and single or dual laser | Starting at $160.00 |
 | Testo Pocket Pro 540 Light Meter Sensor sensitivity resembles that of the human eye | $170.00 |
 | Testo 205 pH/Temperature Meter Rugged food penetration pH meter with automatic temperature compensation | Starting at $362.00 |
 | Testo Saveris Wireless Temperature Monitoring System Data and limit value monitoring for temperature and humidity | Starting at $1,195.00 |
 | Testo 318 Visual Inspection Tool Fiber optic scope with high/low beam, available in multiple lengths | Starting at $310.00 |
 | Testo 314 Gas and Water System Leak Analyzer Pressure meter with built-printer, from -14.5 psi to +14.5 psi | Starting at $1,595.00 |
 | Testo 545 Light Meter w/ Data Logger Log up to 3,000 readings and calculate the mean value with the touch of a button | $699.00 |
 | Testo pH Buffers Buffer solutions for Testo pH meters | Starting at $20.00 |
 | Testo 622/623 Ambient Conditions Monitors Precision benchtop measurement of temperature, humidity and pressure | Starting at $299.00 |
Accessories |
| Testo Clamp Temperature Probe Testo clamp temperature probe for Testo 550 refrigeration system analyzer | $55.00 |
 | Testo Wireless Probes Wireless probes for use with Testo meters | Starting at $95.00 |
 | Testo Standard Probes Wide range of probes for use with the Testo 635 thermo-hygrometer | Starting at $85.00 |
 | Testo Saveris Ethernet Probes Allows for data transfer from the probe to the base, even over long distances | Starting at $665.00 |
| Testo Pitot Tube Pitot tubes for 510/511/512 digital manometers | Starting at $189.00 |
