Description:Measurement of air humidity and temperature in rooms and ductsAutomatic calculation of the dew point and wet bulb temperature via testo Smart Probes AppMeasurement data analyzed and sent via testo Smart Probes AppProblem-free application at measuring points that are a long distance apart thanks to Bluetooth® range up to 100 mThe compact testo 605i temperature and humidity measuring instrument with bendable probe head features professional measuring technology in an intelligent format: it can be used in conjunction with a smartphone/tablet and the testo Smart Probes App to reliably measure air temperature and humidity in rooms and ducts. Temperature – NTC Measuring range: -20 to +60 °C; Accuracy: ±0.8 °C (-20 to 0 °C)±0.5 °C (0 to +60 °C) Resolution: 0.1 °CHumidity - Capacitive Measuring range: 0 to 100 %RH; Accuracy: ±3.0 %RH (10 to 35 %RH) (at +25°C)±2.0 %RH (35 to 65 %RH) (at +25°C)±3.0 %RH (65 to 90 %RH) (at +25°C)±5 %RH (< 10 %RH or > 90 %RH) Resolution: 0.1 %RHOperating temperature: -20 to +50 °C Storage temperature: -20 to +60 °C Accessories: TESTO 605i -Thermohygrometer with Smartphone Operation