This wireless motion sensor alarm includes 1 receiver and 2 transmitters. It features a 3-7m detection range with a 120-degree angle to monitor movement and trigger an alert at the receiver. The system offers a wireless transmission distance of up to 200m to provide security notifications. With an IP52 waterproof rating, it is designed for outdoor use in areas such as driveways, doors, windows, paths, and garages. The receiver offers 38 selectable chimes, an integrated speaker, low power consumption, and 4 adjustable volume levels. Power is supplied via a standard 110-240V plug for the receiver. Each transmitter operates on 3 AAA batteries (not included). Specifications: Color: Black Material: ABS Detection Angle: 120 degrees Detection Range: 3-7m Transmission Range: 200m (without obstacles) Frequency: 433MHz Ringing Tones: 38 Receiver Power Supply: 110-240V plug Transmitter Power Supply: 3 x AAA batteries Transmitter Size: 8.5 x 8 x 2cm Receiver Size: 8 x 8 x 5.5cm Package Contents: 2 x Transmitter 1 x Receiver