BESTOONE Motion Sensor Alarm, Long Range Wireless Driveway Alarm, Indoor Home Security System Electric Doorbells, 2 Motion Detector and 1 Alarm, 38 Chime Tunes, LED Indicator 1 alarm + 2 detector industrial2 Variety of thickness and size

Variety of thickness and size are all in one box

Open the Setting app

maximum signal transfer

3" A1932 A2179 A2337 LOGO glass bezel

Anti-corrosion

BESTOONE Motion Sensor Alarm, Long Range Wireless Driveway Alarm, Indoor Home Security System Electric Doorbells, 2 Motion Detector and 1 Alarm, 38 Chime Tunes, LED Indicator 1 alarm + 2 detector industrial2 Variety of thickness and sizeBESTOONE Motion Sensor Alarm, Long Range Wireless Driveway Alarm, Indoor Home Security System Electric Doorbells, 2 Motion Detector and 1 Alarm, 38 Chime Tunes, LED Indicator BESTOONE Motion Sensor AlarmProduct introduction1. The receiver working power: 110 240V2. the transmitter working power: 4. 5V (3 AAA batteries, not included)3. the receiver buttons: (1) music: 38 ringtones (2) volume: thigh, medium, low (3) mute4. working distance: up to 300