5 in 1 smart smoke and CO2 detector with carbon dioxide and smoke alarm for air quality detection. This smoke alarm with Wifi function and built-in battery for 6-8 hours working without power, can show real-time temperature, humidity, smoke and CO2 concentration on the smart phone app.
4 in 1 smoke and carbon dioxide detector built-in battery for 6-8 hours working without power, has CO2 and smoke alarm for air quality detection. This smoke alarm detector can show real-time temperature, humidity, smoke and CO2 concentration on LCD display, which is widely used in ordinary households and small entertainment places.
Smoke and carbon dioxide detector built-in battery for 6-8 hours working without power, has CO and smoke alarm for air quality detection. 4 in 1 smoke alarm detector can show real-time temperature, humidity, smoke and CO concentration on LCD display, CO measuring range from 0 to 1000 ppm.