Welcome Doorbell Alarm IR Infrared Sensor Detector Door Bell Entry
Wireless detector Size: Approx. 8.9 x 6.2 x 4.8 cm / 3.5 x 2.4 x 1.9 in. Infrared Sensing Distance: Approx. Item Type: Door Bell. 1 x Sensor. Wireless installation, practical design and beautiful appearance, can be placed wherever you want.