Portable Gas Detector (MTPG10)

Sensor types: electrochemistry method (gas catalytic combustion type, special separately) 
Destination gas: oxygen (O2), gas (EX), poisonous and harmful gases (CO, H2S, NH3, CL2, etc.) 
Response time: ≤30s(O2);≤40s(CO);≤20s(EX); 
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 90 dbvoice alarm (10 cmaway from instrument) light alarmRed 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 ºC to 50 ºC 
Humidity: 15% ~ 95% RH (No condensation) 
Power supply: the lithium battery power supply (1500 mah) 
Charging time: 3 ~ 5 hours 
Charging voltage: DC5V (dc)