Cumbelo Gas Detector Portable Gas Testing Instrument Natural Gas Discovery Detective 1. Measuring range: %LEL: 0-20%; PPM: 0-9999PPM 2. Ambient temperature range: 0-60 degrees Celsius (TA702B) 3. Display mode: TA702A: analog bar display; TA702B: analog bar and numerical display 4. Sensitivity: 50PPM (methane) 5. Alarm mode: display + audible and visual alarms 6. Automatic zeroing: automatic zeroing in the preheating process (in clean air) 7. Sensor: semiconductor sensor 8. Detecting gas (partial list): acetone, acetylene, alcohol, ammonia, benzene, butane, ethanol, cyclic ammonia ethane, gasoline, hexane, hydrogen, methane, naphtha, natural gas, paint thinner, propane, solvents, etc. 9. Automatic shutdown: 15 minutes (can be manually shut down) 10. Battery capacity: 3.7V 1000mAh lithium battery 11. Charging port: Micro USB 12. Use of the environment: -10-50 degrees Celsius, 80% relative humidity, indoor altitude of less than 2000m 13. Storage environment: -10-50 degrees Celsius, within 70% relative humidity 14. Packing List: Main unit x 1, cloth bag x 1, manual x 1, charging cable x 1 15. Overall size: about 19.2 x 7 x 3.5cm 16. Gooseneck length: about 20cm 17. Weight: about 275g Features: 1. Highly sensitive response speed for combustible gas leakage detection in pipelinesequipmentregulators. 2. Probe with illumination design, high brightness, dim scene can be turned on the lighting 3. 10-hole gas channel design, gas can be quickly inflow, fast and agile response 4. Concentration alarm 5. VA high-definition color screen display, with background lighting (always on)