General description The Motion Detector Alarm Wireless Security Alarm System is designed to enhance security in various settings such as homes, RVs, garages, and stores. It features a powerful infrared motion sensor that detects movement and alerts you with a loud 110 dB alarm, ensuring you never miss a visitor or customer. Technical specifications Motion sensor detection range: 5 meters Detection angle: 110 degrees Transmission distance to receiver: 150 meters Volume range: 0 to 110 dB Number of unique ringtones: 58 Compatibility and accessories Expandable system: More sensors and receivers can be added Power options for motion sensor: 2 AAA batteries or USB cable (note: USB option does not charge batteries) Receiver type: AC plug-in Usage Ideal for front doors, window frames, walkways, and paths Great for alerting business owners who work behind or out of sight