It is an independent combustible gas alarm, which adopts international advanced gas detection technology and uses cost-effective microprocessor as the control core.Leakage concentration, when the leakage concentration reaches the set value, the detector will send sound and light alarm. When the indoor gas concentration is lower than the alarm setting value, the detector automatically returns to the normal working state, which can avoid the occurrence of poisoning, explosion, fire and other injury and property damage caused by combustible gas leakage. characteristics 1. Using high quality semiconductor heating sensor, good stability. 2. MCU intelligent control monitoring, SMT chip technology 3. With on-site sound and light alarm function. 4. Digital tube display technology, showing the leak concentration in real time. 5. Three indications: power indication - POWER, status indication - STATE, alarm indication - ALARM. Technical indicators Detection gas: liquefied petroleum gas, gas natural, artificial gas Operating voltage: AC100V~AC240V 50/60Hz Rated power: