Product Description 

 HM3 electric ventilation psychrometer suitable for meteorological stations, the use of industrial and mining enterprises, laboratories and research units to measure air temperature and relative humidity, and other standard instrument for measurement. In the right and left side of the thermometer frame, equipped with a dry bulb, wet bulb thermometer one. The instrument features require ventilation speed and stability. 
 Technical parameters 

 Temperature range: -36 ℃ ~ 46 ℃ 
 Humidity range: 10% RH ~ 100% RH 
 Ventilation rate:> 2.5m / s 
 Power supply: 22VAC 50Hz 
 Size: φ90mm ~ 418mm 
 Weight: 1.1kg