Thermo-hygrometer with fixed probe. Range: humidity 5-95% / temperature -40 + 70ºC; resolution: humidity 0.1% / temperature 0.1ºC; accuracy: humidity ± 3% (20-80%) rest range ±4% / temperature ± 0.5ºC; functions: maximum, minimum, dew point, wet bulb, hold, ºC / ºF, automatic shutdown; power supply: 2x 1.5 V AAA batteries; dimensions: 170 x 50 x 17 mm; weight: 100 g.