-Voltage: 220-240V,or 110V,or 12-24V -Detected gas: LPG, ... : 110mm x 69 x 36mm11Weight: 270gInstallation Instructions:1),The gas detector should be installed at the position of 1.5 meters ... ),If the gas is heavier than the air, the gas detector should be installed higher 0.3m than the ground;if ... the gas is lighter than the air,the gas detector should be installed lower 0.3m than the ceiling.Packing ...