Door Bell Alarm Chime Doorbell Wireless Infrared Monitor Sensor Detector Entry Bell

Wireless Infrared Monitor Alarm Entry Doorbell Chime

Melody: for Alice

Features：

Wireless door chime is great for retail store, shops, business, salons, front / back / side door, etc. Attach this infrared alarm anywhere you want and instantly know when someone crosses the beam.
Infrared sensor detects motion and sends a signal to the receiver
Wireless installation, just place the sensor at the entrance
Receiver requires 2x AA batteries, transmitter requires 1x 9V battery (batteries not included)
Send audible chime sound, alerting you that somebody is approaching
Working Range: Up to 100 meters / 328 feet between receiver and transmitter
Transmitter Size (L x W x H): Approx. 3.5 x 2.4 x 1.8 inch
Receiver Size (L x W x H): Approx. 3.5 x 2.6 x 1 inch
Receiver Switch Setting: High / low volume / off
Please be noted that the transmitter also have a swtich,please turn on it before use
Material: Plastic

Package: Wireless Doorbell