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.
Scatter field probe for fast and damage-free material moisture measurement, with probe cable 1.2 m. AUTHORISED RETAILER Buy with 100% confidence knowing your purchase is backed by the full Manufacturer's...
DOWNLOAD BROCHURE Service case for secure storage of measuring instrument Suitable for Testo 315-3 Length 530 mm Width 450 mm Note: The instruments shown in the product image are for...
Service case for measuring instrument, probes and accessories Suitable for measuring instruments: Testo 435 Testo 635 Testo 735 Dimensions: 454 x 319 x 135 mm AUTHORISED RETAILER Buy...
Safely stow away and transport your equipment: the robust service case offers storage space for your Testo 440 or Testo 440 dP air velocity and IAQ measuring instrument, other probes...
0554 3112 Testo Shut Off Valve This premium shut-off valve guarantees secure charging hose connection with zero refrigerant leakage. Constructed from robust, pressure-resistant brass, it delivers exceptional longevity and dependable performance...
Equilibrium moisture content is ideally measured in a bore hole in the material. The thin humidity probe with a probe shaft diameter of 4 mm (connected to an appropriate measuring...
With the small lux and UV probe (28 x 56 x 15 mm), you can reliably monitor light-sensitive exhibition objects both in the exhibition room and in display cabinets. Small...
With the small lux probe (28 x 56 x 15 mm), you can reliably monitor light-sensitive exhibition objects both in the exhibition room and in display cabinets. Measurement range: illuminance...