Item Type: Gas Detector Model: HT609 Material: ABS Battery: 3 x 1.5V AAA battery delivered without battery. Application: For combustible gas detection. Sensor: Gas sensing semiconductor. Response Range: About 50PPM~1000PPM for methane. Sensitivity: ＞50ppm for methane. Detected Gas: Acetone acetylene ammonia benzene butane ethanol ethylene oxide gasoline hexane hydrogen methane naphtha natural gas propane solvents etc. Warm Up Time: About 30 Seconds Response Time: <=500PPM: About 5 seconds. >500PPM: About 2 seconds.
