Origin:Mainland China Certification:NONE Model Number:JT-BZ-01AQ/A Detection gas:Methane (CH4) Power supply:220VAC Detection range:0~20%LEL Alarm setting value:10%LEL Operating temperature:-10~ 55 Operating humidity:93%RH (non-condensing) Wireless Connection:Zigbee Service life:5 years Aqara Smart Natural Gas Detector Zigbee Gas Leak Alarm Intelligent Linkage Smart Home Security Title: Aqara Smart Natural Gas Detector Zigbee Gas Leak Alarm Intelligent Linkage Smart HomeSecurity Features: Strict Quality Control,Don't Ignore Any Details.The built-in catalytic combustion gas sensor adoptsadvanced gas concentration detection algorithm,with high sensitivity, strong anti-interference, and aservice life of up to 5 years. When a natural gas leak is detected, immediately alarm and close the solenoid valvein parallel to ensure safety from the source. When a natural gas leak is detected, the linkage gateway willsend out an audible and visual alarm, and you can hear clearlywhen sleeping in the bedroom. When a natural gas leak is detected, the linkage gateway sendsa remote reminder to the mobile phone, so that you canconfirm the safety of your home even when you are away. Easy Install.The natural alarm can be installed by punching or pasting,according to the applicable situation and personal situation. Specification: Product Name: Aqara Natural Gas Alarm Sensor Product Model: JT-BZ-01AQ/A Detection gas:Methane (CH4) Power supply: 220VAC Product size:: 80.431mm (including mounting plate) Net weight: 88G (without adapter) Detection range: 0~20%LEL Alarm setting value: 10%LEL Operating temperature: -10~ 55 Operating humidity:93%RH (non-condensing) Wireless Connection: Zigbee Service life: 5 years (may vary slightly due to different use environment) Package list: 1* Aqara Natural Gas Alarm Sensor 1*Manual Note: 1.This is Chinese version, when you connect with APP, please change the region to China Mainland, thanks. 2.Work with Aqara / switch HomeKit / Mijia 3.Need use Aqara Hub E1, Aqara Hub M1S, otherwise it's not working. Shipping: 1.We guarantee to ship goods out within 24-72 hour after payment confirmation except holiday. 2.We ship by China post,HKpost EMS,DHL,Fedex,according to your choice when placing orders . 3.If you didn't receive the item after 45 days,please feel free to contact us.We will make all our effort to resolve the problem. 4.We are not responsible for delays causedby the customs,other customscharges. 5. Due to stock status and time differences, we will choose to ship your item from our first available warehouse for fast delivery. Warranty: 1.All items have 1 year guarantee.IF your purchase do not meet merchantable quality, fitness for purpose or match the description, We can make sure your issues are resolved . 2.For wrongly-shipped items, Please contact us in 48 hours after delivery.We will arrange to deliver the correct items or return all your payment. 3.For defective or faulty products,please take photos or videos,we would resend or refund after confirmation.