Description Product Description Details: With gas concentration display, keep abreast of the situation on site Convenient and intuitive Make your home safer and more worry-free Gas detection: liquefied, natural gas, artificial gas Power supply voltage: AC100V~AC240V Power frequency: 50/60Hz Rated power: 2W Detecting gas: natural gas, LPG, coal gas Alarm concentration: 3%LEL~20%LEL Alarm loudness: 85dB (3 meters away from the product) Working temperature: -10~40 Working temperature: 97%RH It is an independent combustible gas alarm, which adopts the international advanced gas sensing technology and uses a cost-effective microprocessor as the control core. Leakage concentration, when the leakage concentration reaches the set value, the detector will send out sound and light alarm. When the indoor gas concentration is lower than the alarm setting value, the detector will automatically return to the normal working state, which can avoid the occurrence of poisoning, explosion, fire and other personal casualties and property loss accidents caused by combustible gas leakage. Features 1. Using high-quality semiconductor heating sensor, good stability. 2. MCU intelligent control monitoring, SMT placement process 3. With on-site sound and light alarm function. 4. Digital tube display technology, showing the real-time leakage concentration. 5. Three indications: power indication - POWER, status indication - STATE, alarm indication - ALARM. Specifications Gas detection: liquefied, natural gas, artificial gas Working voltage: AC100V~AC240V 50/60Hz Rated power: 4W Alarm concentration: liquefaction: 0.1~ 0.5% natural gas: 0.1~ 0.3% coal gas 0.1~ 0.5% Alarm volume: 85dB (3 meters away from the product )Operating environment: -1050, relative humidity 97%RH Storage temperature: -2555