Alarm siren, make sounds Compatible with smoke sensor, gas sensor, water sensor, help to warn people from danger.
Working Voltage: DC5V/1A(AAA 1.2V*4)
Alarm Current: <200mA
Alarm Loudness: 80-110dB
Transmission speed: 9.6/40/100kbps
Linkage with door sensor/motion sensor etc. When sensor triggered, siren alarm will make noise