Siren alarm is an intelligent device that can make sounds and lighting remotely when door sensor, motion sensor, water sensor, light switch, dimmer switch and so on is triggered. You could also get the currently temperature and humidity.
1. Model: COL-SR02ZB
2. Power supply :CR123A *2pcs
3. External power supply: Mini USB , 5V 1A
4. Wireless Type:2.4GHz
5. Sound intensity:110 dB
6. Product size(L*W*H): 68 x 68 x 30mm