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.
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....
DOWNLOAD BROCHURE Versatile for numerous temperature applications, the kit consists of an air probe, an immersion/penetration probe and a surface probe. All probes are equipped with a thermocouple (type K,...
The temperature probe with aluminium sleeve and flat tip is suitable for measurements in liquids and pastes as well as for air temperature measurements. Thanks to its NTC sensor element,...
This temperature probe featuring a penetration tip is suitable for temperature measurements in pastes and semi-solid media and also in liquids and air. Thanks to its NTC sensor element, the...
The stub probe is suitable for air temperature measurements and also for temperature measurement in liquids and pastes. Thanks to its NTC sensor element, the probe provides precise temperature measurements...
The Testo Smart Case “Temperature” protects your instruments and keeps them tidy. The soft foam insert with precise-fit compartments ensures that each measuring instrument has its own space. And thanks...
Using the printer you can print out graphs and measurement data from compatible Testo measuring instruments or Testo Apps. Bluetooth® & IrDA interface in one printer Printout of graphs and...