Feature: 1. Efficient Detection: The use of infrared detection technology, can be highly sensitive to detect the movement of the human body. If someone approaches, the alarm will trigger an alarm to alert them. 2. Wireless: The alarm uses wireless connection technology, without complex wiring and connection. As a result, installation is easier and does not damage walls or other surfaces. 3. Waterproof and Weather Resistant: Well sealed design, it can adapt to outdoor harsh weather, can be used indoors or outdoors, whether it is rainy or wet environment. 4. Anti False Alarms: Three beam infrared technology, when pets, small animals, or falling after one to two beams of infrared, will not trigger the alarm, effectively reduce false alarms. 5. Multi Scenario Application: The alarm is suitable for a variety of places, such as homes, offices, stores, etc. Whether indoors or outdoors, it provides you with reliable security protection. Specification: Item Type: Infrared Beam Detector Material: ABS. Package List: 2 x Beam Detector1 x Use Manual