Interface: Bluetooth
Temperature measuring range: -20 °C … +70 °C
Resolution: 0.1 °C
Humidity measuring range: 5 … 95 %RH
Resolution: 0.1 %RH
Standard set: testo 0635 1571 hotwire probe, 4 x AA batteries, telescope (extendable to 1.0 m), calibration protocol.