Model Number: HFP-P-#1234 Brand Name: Hua Fan Qin Lu Key Specifications/Special Features: Portable 4-in-1 gas detector, kind of concentration of instrument that can continuous detect the concentration of O2, EX, CO, H2S gas in working environmentDetector detects gas concentration with natural diffusion mode, which uses the imported sensors and has good sensitivity and repeatabilityBasic parameters:Size: 180 * 71 * 51mmWeight: 360gSensor types: pump type (gas catalytic combustion type, special separately)Destination gas: oxygen (O2), gas (EX), poisonous and harmful gases (CO, H2S, NH3, CL2)Response time: oxygen <30S, carbon monoxide<40s, can be gas <20sTime display: machine has year, month, day and the clock display functionDisplay: dot matrix liquid crystal display in English, high brightness white backlight
Alarm: voice alarm more than 90dB voice alarm (10cm away from instrument) light alarm red LED
Work mode: continuous work, full of electricity in the case of four standard set of 15 hours (off pump), other gas 7 days or so, above is for reference only the standby time depending on the number of alarm)
Temperature range: -20 to 50°C
Humidity: 15-95% RH (no condensation)
Power supply: Lithium battery power supply (1800mAh)
Charging time: 3 - 5 hours
Charging voltage: 5V DC