Digital gas leak detector

Range: 50~1000ppm(methane) Detecting gas: combustible gas Response sensitivity: <50PPM Response time: <=500PPM: 5sec >=500PPM: 2sec Flexible probe: 150mm Warm-up time: about 30 seconds Alarm mode: analog display and wind chime Use environment: 0-50℃/20-80%RH Storage environment: -10~60℃/20-80%RH With 2pcs R03 AAA batteries Packed by color box