DescriptionIf you are looking for a professional and affordable smoke alarm, then your research is over here. That's because our smoke alarmcan meet your need. Adopted of plastic and metal material, it is practical and durable for long time use. It is not easy to get deformed and bring you much convenience.Features-Color:As Shown -Material:Plastic, Metal -Size:10.00X10.00X4.50cm/3.93X3.93X1.77in -Working Voltage:DC5V -Alarm Current:80mA -Detection Angle:180 Degree -Quiescent Current:5uA -Operating Temperature:10-60() -Detection Distance:3m -Transmit Frequency:315/433(MHZ) - High sensitivity: this smoke alarm can detect smoke in time, effectively prevent fire accidents. - Independent design: no need to connect to other devices, easy to install and use. - Suitable for home use: suitable for homes, apartments, offices and other places. - Compact size: suitable size and lightweight, and this smoke alarm cannot occupy too much space. - Long service life: made of good and practical material, sturdy and durable, no need to replace frequently.