Product Description 
 JFY-ventilated multi-parameter detector is a simultaneous determination of the atmospheric pressure, differential pressure, wind speed, temperature, humidity, precision hand-held portable instrument, mainly used for the determination of atmospheric pressure, differential pressure, wind speed, temperature, humidity, suitable for fire, the detection of limited space, municipal, chemical, gas. 
 Technical parameters 

 Temperature: (0 to 40) ° C, ± 1.0 ℃ 
 Humidity: 0 ~ 95% RH, ± 3% RH 
 Differential Pressure:-3500Pa ~ +3500 Pa, ± 2% 
 Pressure: 95kPa ~ 120kPa, ± 2% of 
 Wind speed: 0.2 to 5 m / s, 0.2m / s 
 5 ~ 10 m / s, 0.3m / s 
 > 10 m / s, 0.4m / s 
 Display: LCD 
 Operating voltage: 6V Operating Current: <130mA 
 Working time: ≥ 10h 
 Imports of wind speed probe 
 Data storage capacity: capacity 26500 data and 100 data sets 
 Explosion-proof in the form: intrinsically safe, explosion-proof mark ExibI 
 Open-circuit voltage: 7V short-circuit current I0: 3A 
 Battery Type and Capacity: Nanfu durable VII AAA NiMH rechargeable battery 900mAh / session 
 Dimensions: 9.7 cm * 21.1 cm * 5.3 cm 
 Weight: 0.36kg