Household 12v Wired Smoke Alarm Fire-proof

Product information:
Product Name: wired smoke sensor alarm
Detection gas: natural gas, liquefied gas, gas
Signal output: normally open/normally closed
Coverage area: 20 to 40 square meters
Overall dimensions: medium 120 X 50mm
Reset method: Automatic
Alarm mode: sound and light/networking alarm
ICC, IDD: DC 12V/100mA
Operating temperature: -10°C-55°C