For measuring humidity and temperature in storage, refrigerated and work rooms, in ventilation ducts and also on refrigeration systems and heat pumps.

Measuring range: 0 to 100% RH / -20 to +70 °C, accuracy: ±2% RH / ±0.5 °C

The set includes: testo 440 air velocity and IAQ measuring instrument, 3 x AA batteries, USB cable, ?Humidity/temperature probe (Ø 12 mm) with Bluetooth* (consisting of humidity/temperature probe head and Bluetooth handle); 4 x AA batteries, basic case for testo 440 and 1 probe