Lu'an household gas leak alarm factory direct with the continuous progress of society, natural gas for heating, cooling needs are increasing. In particular, the annual winter and summer time is the extensive use of natural gas, so at the same time we also pay attention to the use of safety. Annual National because natural gas, gas leak lead to death, countless people injured. In order to enhance our standard of natural gas, gas is safe to use. Also can not worry about leaking gas, natural gas. I introduced a new prevention natural gas, LPG, city gas leak voice type combustible gas. This product received a listing on the majority of the people's favorite. It looks beautiful, high sensitivity is most intelligent voice alarm, this is all the product before some none. Voice-based combustible gas for home independent or Zigbee networked combustible gas for gas, natural gas, liquefied petroleum gas and other combustible gases using existing sites, due to the combustion gas leak and explosion accident can be safe detection and alarm Technical parameters Voltage Selector: AC 200V ~ 230V low power alarm Machine Static power consumption: <0.5W (calculated according to 12VDC) high-power alarm Machine Static power consumption: <3.3W (calculated according to 220VAC) Alarm concentration: Hugh combustible gas: LPG 0.1% to 0.5%; natural gas from 0.1% to 1%; city gas (H2) 0.1% ~ 0.5%; gas response, recovery time: ≤30S Alarm Volume: ≥100dB working environment: Humidity ≤97% RH temperature: -15 ℃ - + 50 ℃ Dimensions: 130 * 73 * 41mm: Packaging: Alarm / screw / Insurance card / certificate / specification / color box of our products are in cooperation with CCTV Investment Network, and There are 1 million Pacific Insurance, the quality is absolutely no problem. Products are received within three months of the date products are quality problems Baohuan year free warranty (to be our engineering department to check the human damage)