Features: Experience unparalleled security with our Mini Single Beam Detectors, designs to offer a sensitive 20 meter detection ranges for reliable Perimeters protections. Crafted from ABS, this waterproof outdoor alarm Detectors features not crushing and not clamping technology, ensuring it stands up to the toughest conditions while minimizing false alarms. Suitable for both men and women, this Multifunction beam Detectors is perfect for homeowners and business professionals seek to enhances their property's safety. Whether securing office space or integrating into gate systems, this alarm Detectors provides constant vigilances against intruders, making it essential component of any theft prevention strategy. With its easy to install design and double operational (normally open/normally closed), this not interferences alarm Detectors is a top choice for those look to protect their premises with minimal fuss. Specifications: Component: ABS Size: about 29x49x76mm Testing distance: 20m Working voltages: 12-24v Package Includes: Pair Beam Detectors note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.