Product Description 
 This product is applicable to new manufacturing, light principle and repair methane measuring error and the air tightness test, can also be used as a pressure gauge. 
 Technical parameters 
 Pressure range: 0 ~ 7.2kpa (0 ~~ 730mmH2O) 
 Calibration Range: 0 ~ 10% CH4 
 Minimum grid value: 0.01KPa (1mmH2O) 
 Operating voltage: AC220v 5oHz 
 Output voltage: DC0.2V ~ 6V 
 Form Factor: host 520mm * 320mm * 260mm scale 820mm * 50mm * 60mm