Welcome Doorbell Alarm IR Infrared Sensor Detector Door Bell Entry Security

Feature: 1. The working range is up to 100 meters and the infrared sensing distance is 3 7 meters. 2. Made of high quality ABS material, eco friendly, sturdy and durable in use. 3. Wireless installation, practical design and beautiful appearance, can be placed wherever you want. 4. The infrared sensor detects motion and sends a signal to the receiver, widely used in home, apartment, office, etc. 5. Electronic security to see remote detection system, wireless doorbell welcome alarm device. Specification: Condition: 100percent Brand New Item Type: Door Bell Material: ABS Classic Music: Single Alice Working Distance: Approx. 100m 328.1ft (Outdoor) Infrared Sensing Distance: Approx. 3 7 meters 9.8 23ft Battery: 9V Battery x 1, AA Battery x 2 (Not Included) Wireless detector Size: Approx. 8.9 x 6.2 x 4.8 cm 3.5 x 2.4 x 1.9 in Receiver Size: Approx. 9.3 x 6.8 x 3.7 cm 3.7 x 2.7 x 1.5 in Weight: Approx. 180g 6.3oz Package List: 1 x User Manual1 x Sensor1 x Receiver1 x Bracket