Mining Use Portable 4 In 1 Gas Detector
Material:flame retardant plastic shell +backlight
display
Detecting method: natural diffusion or (external pump
suction)
Power supply: 7000mAh rechargeable lithium battery
Humidity:0-95% R.H non-condensing
Charging time:<6 hours
Size: 121 * 68 * 32 mm
