Features 1、Regular Self Inspection: The smoke detector has a regular self inspection button. Press the self inspection button for regular self inspection to ensure the normal operation of the alarm. 2、Voice Alert and LED Light: The detector is mainly composed of a group of infrared transmitting tubes and receiving tubes. It is very sensitive. When smoke and fire danger are detected, it will send out an audible alarm of up to 95dB. The LED light will flash red and be pushed to the mobile phone app to protect the whole family. 3、Support for Tuya APP: Remote alarm mobile app is used for remote monitoring. Once the smoke concentration is too high, the smoke alarm will alarm immediately, and the linkage gateway and mobile app will alarm at the same time. 4、Remote Control: At the same time of low power consumption reminder, when the detector is in alarm state, remote mute function can be realized through app. 5、Easy Installation: The installation is simple and convenient, and the intelligent smoke alarm can be stuck in the correct position with only one piece of adhesive without any tools. Specifications Item Type: Smoke Detector Material: ABS Gross Weight: 66g/2.3oz Battery: Polymer lithium battery CR2(excluding) Working Current: Alarm current ＜ 120mA Quiescent Current: ＜ 11μA Operating Temperature: -10 ℃ - +50 ℃ Communication Distance: More than 50m of open space Package List 1 x Smoke Detector( Battery Excluding) 1 x Double Sided Adhesive Tape 1 x Instruction Manual 2 x Expansion Pipe 2 x Screws