Basic parameters: Size: 108 mm * 61 mm * 40 mm Weight: 1351g Sensor types: electrochemistry method (gas catalytic combustion type, special separately) Detection of gases: oxygen (O2), gas (EX), poisonous and harmful gases (CO, H2S, NH3, CL2, etc.) Response time:30s(O2)30s (H2S) Time display: the machine is year, month, day, and the clock display function Display: dot matrix liquid crystal display in Chinese, High brightness white backlight Alarm: voice alarm More than 90dB (10 cm away from instrument) light alarm Red LED Work mode: continuous work (charged under the condition of gas can work 20 hours or so, other gas 7 days or so, the above is for reference only the standBy time depending on the number of alarm) Temperature range: - 20 ~ 50 Humidity: 15% ~ 95% RH (No condensation) Power supply: the lithium battery power supply (1500 mAh) Charging time: 3 ~ 5 hours Charging voltage: DC5V
