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.
Testo Suit Case 0516 4200 Trolley case for Testo 420 Air Flow Hood Kit 0563 4200 AUTHORISED RETAILER Buy with 100% confidence knowing your purchase is backed by the full Manufacturer's...
With the appropriate measuring instrument, the waterproof, superfast needle probe (TC type T) enables you to measure the core temperatures of valuable pieces of meat, e.g. steaks or tenderloin steaks...
Ideal for proof of structural damage in buildings: in combination with the appropriate measuring instrument, the wall surface temperature probe (NTC) with its compact measuring head and particularly long cable...
In combination with the appropriate measuring instrument, the temperature probe (NTC) is ideal for measuring surface temperatures. Measuring range: -50 to +80 °C NTC temperature probe with 2 m cable,...
This thermocouple (TC) temperature probe with flexible, low-mass tip is suitable for air temperature measurements and also for measurements in liquids and pastes - particularly in small-volume media, e.g. petri...
The surface temperature probe has a telescope that can be extended to 985 mm and enables convenient measurement, even in places that are difficult to access. Surface temperature probe (TC...
Humidity/temperature probe (Ø 12 mm) with 110 cm fixed cable Temperature measuring range: -20 to +70 °C Humidity sensor with long-term stability AUTHORISED RETAILER Buy with 100% confidence knowing your...
The U-value (formerly k-value) is the most important value used to rate the energy efficiency of building components. With the new testo 635 measuring this value has never been easier....