Testo sets the benchmark in precision measurement for HVAC-R professionals. From smart probes to digital manifolds, Testo instruments are built to deliver fast, accurate results where it counts—on the job.
Trusted by HVAC Technicians
Unmatched Accuracy: German engineering that delivers consistently precise data.
Smart Tools, Real Insights: Bluetooth connectivity, app integration, and digital diagnostics that streamline every service call.
Built for the Field: Rugged design, fast response times, and intuitive controls—perfect for tough environments.
HVAC Essentials by Testo – Start browsing below!
Cool Tools HVAC-R stocks a specialist selection of Testo instruments designed for HVAC precision, including digital manifolds, vacuum gauges, smart probes, temperature and humidity meters, and combustion or refrigeration analyzers. Each tool is engineered to deliver fast, reliable data for diagnostics, servicing, and system performance.
0635 1571 Testo Digital Humidity/Temperature Probe with Bluetooth For measurements in ventilation ducts: use the hot wire probe (with the compatible measuring instrument) to measure air velocity, volume flow, air temperature...
The immersion and penetration probe (thermocouple type K) is used primarily for measurements in water, to ensure that heating systems are configured correctly. Fast-action immersion/penetration probe (TC type K) with...
The surface temperature probe (thermocouple type K) features a thermocouple strip, which guarantees a fast response time and enables measurements to be carried out on uneven surfaces. Measuring range short-term...
The surface temperature probe (thermocouple type K) features a thermocouple strip, which guarantees a short response time and enables measurements to be carried out on uneven surfaces. Thanks to the...
With the appropriate measuring instrument, the fast-reaction paddle surface probe enables reliable temperature measurements – even in places that are difficult to access, for example in narrow openings and cracks....
Fast, flexible and waterproof: the immersion probe is ideal for carrying out accurate immersion measurements in various liquids. Flexible, fast-action immersion probe (TC type K) with fixed cable 1.5 m...
The immersion measuring tip (thermocouple type K) is ideal for fast temperature measurement in liquids, air or viscoplastic media. It is flexible and therefore versatile to use. The immersion measuring...
