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.
The thermoelectric couple is ideal for fast and easy measurement of the air temperature. The flexible thermocouple wire can for instance be laid through drill holes, gaps or door seals....
Flexible thermoelectric couple with TC plug and glass fibre insulation for fast and easy temperature measurement (with the appropriate measuring instrument). Measuring range: -50 to +400 °C Thermocouple type K...
The frozen goods probe (TC type T) is primarily used for measuring the core temperature of frozen food. Thanks to a special handle and its helical tip, it can be...
The Testo Smart Case “Heating” protects your instruments and keeps them tidy. The soft foam insert with custom-fit compartments ensures that each measuring instrument has its own space. And thanks...
The humidity/temperature probe is suitable for measuring temperature and relative humidity in storerooms, cold storage areas and workrooms or in air conditioning/ventilation ducts.The humidity/temperature probe can be installed for long-term...
The thin humidity/temperature probe is suitable for measuring temperature and relative humidity in storerooms and workrooms. The exceptionally small diameter of 4 mm also makes it possible to measure in...
The Testo HVAC softcase protects your instruments and keeps them tidy. The soft foam insert with precise-fit compartments ensures that each measuring instrument has its own space. Thanks to the...
With the appropriate measuring instrument, the immersion and penetration probe (IP67) enables precise temperature measurement in liquids, in pastes and in the air. Measuring range: -35 to +80°C Temperature measurement...
