WIRELESS INFRARED SENSOR DOORBELL MONITOR DETECTOR ENTRY IN BARKLY WEST

Features: 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. Great for retail store, shops, business, salons, front / back / side door, etc. Receiver requires 2* AA batteries, transmitter requires 1* 9V battery (batteries are not included). Send audible chime sound, alerting you that somebody is approaching (Note: only one music type sound, no changing) Specifications: Color: White Material: Plastic Melody: for Alice Receiver Switch Setting: High / low volume / off Working Range: Up to 100 meters / 328 feet between receiver and transmitter Receiver Size: Approx. 9 * 6.5 * 2.6cm / 3.5 * 2.6 * 1 inch Transmitter Size: Approx. 9 * 6 * 4.3cm / 3.5 * 2.4 * 1.8 inch Package size: 10.3 * 10.3 * 7cm / 4.1 * 4.1 * 2.8in Package weight: 172g / 6.04oz Package List: 1 * Transmitter 1 * Receiver 2 * Mounting Bracelets 1 * User Manual(English)