Description/Features: Advanced Security: Enhance the safety of your property with our Infrared Beam Sensor, designed specifically for gates, doors, and windows. This external alarm detector acts as a powerful barrier against unauthorized access. Single Beam Technology: Utilizes a single beam infrared system to detect any interruptions caused by intruders, ensuring reliable and accurate alerts. Easy Installation: Our sensor is easy to install and integrates seamlessly with your existing security setup, providing an additional layer of protection without the need for complex configurations. Versatile Use: Ideal for both residential and commercial properties, offering peace of mind through enhanced security measures. Specifications: Working voltage: 12-24VDC Light source mode: infrared pulse type Detection method: beam interruption detection method Shooting angle:Less than 10 ° Warning distance: ≤ 20M Response speed: Open circuit time ≥ 1S Working current: TX: 15 MAX RX: 30MA Relay contact capacity: AC DC30V 0.5A Applicable environmental conditions: -25 ℃ -55 ℃ Color: Black Material: ABS Due to different batches, there may be differences in product printed text, which will not affect use Package Contents: 4 x Infrared Beam Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.