Model Number: HFP-1201#1422 Brand Name: HuaFan QinLu Key Specifications/Special Features: Basic parameters:Size: 108 * 61 * 40mmWeight: 135 gSensor types: electrochemistry method (gas catalytic combustion type, special separately)Destination gas: oxygen (O2), gas (EX), poisonous and harmful gases (CO, H2S, NH3, CL2)Response time: ≤30s (O2), ≤40s (CO), ≤20s (EX)Time display: machine is year, month, day and the clock display functionDisplay: dot matrix liquid crystal display in Chinese, high brightness white backlightAlarm: voice alarm more than 90dB (10cm away from instrument) light alarm red LEDWork 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 to 50°CHumidity: 15% - 95% RH (no condensation)
Power supply: Lithium battery power supply (1500mAh)
Charging time: 3-5 hours
Charging voltage: 17V DC