1. Simple to use, plug the gas alarm directly into the 220V socket to use 2. Can detect a variety of gas leakage, natural gas, , coal gas, etc. 3. Sensitive, immediately alarm, alarm sound loud 4. The back with a hole to facilitate wall hanging Type: gas alarm detector Measuring range: 180 degrees Measurement object: Methane Measurement accuracy: Resolution: 6% Power supply: 220V Detection distance: 30 Scope of application: household, commercial, kitchen, hotel, gas may leak Detection angle: 360 degrees voltage: AC220V Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on Colour:White Material:ABS Package Contents: 1 x Gas Leak Detector 1 x English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.