Wireless Motion Sensor Alarm includes 1 receiver and 2 transmitters, with a 3-7m (9.8-22.9ft) effective detection range and 120-degree detection angle, capable of detecting movement in surrounding areas and triggering an alert to the linked receiver. Large wireless transmission distance allows signals to reach the receiver from over 200m (656ft) away, providing enhanced security for your property and loved ones. IP52 waterproof design features a protective cover and sealed construction, making it suitable for outdoor use in various weather conditions. Ideal for installation at front doors, windows, driveways, walkways, shops, garages, and more. Offers 38 selectable chime options with a built-in high-quality speaker, low power consumption, and 4 levels of adjustable volume to ensure ble alerts. The receiver operates via standard electrical outlet, while the transmitters are powered by 3 x AAA batteries (not included), allowing flexible placement. Specifications: Color: Black Material: ABS Detection Angle: 120 degrees Detection Range: 3-7m Transmission Range: 200m (open area, no obstacles) Frequency: 433MHz Ringing Tones: 38 Power Supply – Receiver: AC plug (110-240V) Power Supply – Transmitter: 3 x AAA batteries (not included) Transmitter Dimensions: 8.5 x 8 x 2cm (3.3 x 3.1 x 0.78 inches) Receiver Dimensions: 8 x 8 x 5.5cm (3.1 x 3.1 x 2.1 inches) Package Includes: 2 x Transmitter 1 x Receiver