Two-way wireless PIR siren ,alarm once PIR detect any motion .

Key Specifications/Special Features:

Alarm will be triggered by PIR motion detect
Infrared coverage 8 meters, 120° horizontal and 90° vertical
Exit delay: 30 seconds
Entry delay: 5 seconds
Ultra alarm sound 130 decibel siren
Power operation: 3 x AA size alkaline battery (not included)
Battery low indicator
Wall-mounted or free standing installation
Dimension: 68 x 108 x 36mm
Can construct alarm system by pairing with magnet alarm, video recorder, siren box
Ideal for stores, offices, libraries, warehouse, home-guard and more