Welcome to our store！</br>1、3 kinds of reminder lamp design, when the alarm fails, the indicator light shows yellow, normal standby is green, and alarm is red. 2、Gas leak alarm, sensitive response, high‑pitched alarm, so you can deal with it in time. 3、Using advanced gas sensor chips, professional team produced, each one is strictly produced and inspected layer by layer. 4、Made of new‑generation ABS fuel‑restricted materials, which can withstand high temperatures and are not afraid of deformation. 5、Easy and convenient to install, no need for tedious wiring, no complicated installation process. <p class="wang-edit-text"><p class="wang-edit-text"> Item Type: Gas&nbsp;Leak&nbsp;Alarm Material: ABS Working Voltage: AC 90-240V Working Temperature: 0-50℃ Environmental Humidity: 10-95% RH Without Condensation Detection Concentration: 2500ppm (+/-1500ppm) Detection Distance: Approx. 30m/32.8yd Scope of Application: Household How to Use: After the equipment is installed in a suitable location, it is powered on. If there is a leakage of natural gas, biogas, gas, etc., the equipment will sound an alarm. <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x Gas&nbsp;Leak&nbsp;Alarm1 x Screw Mounting Package 1 x Manual Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>