Overview This wireless motion sensor alarm system is designed to enhance security for homes and businesses. It effectively detects movement within a 3–7 meter range and instantly alerts you via a remote receiver, providing reliable monitoring for driveways, doors, garages, and outdoor areas. With strong signal transmission, waterproof design, and easy installation, it offers a practical solution for safeguarding your property.Product Details The alarm set includes 1 receiver and 2 transmitters, featuring a 120° detection angle and a wireless range of over 200 meters. The IP52-rated waterproof housing ensures durability in various weather conditions. With 38 selectable chimes and adjustable volume, the system allows personalized alerts. The receiver plugs into a standard indoor outlet, while the transmitters operate on AAA batteries for flexible placement.Key Features 1. Wireless Motion Detection – Equipped with 2 transmitters and 1 receiver, the system detects movement within 3–7 meters and a 120° angle, triggering an immediate alert to notify you of activity. 2. Long-Distance Signal Transmission – Strong 433MHz signals penetrate obstacles and reach the receiver over 200 meters away, ensuring timely warnings for enhanced security. 3. Weather-Resistant Design – Featuring an IP52 waterproof rating with a protective cover and deepened grooves, it performs reliably outdoors in rain or shine. 4. Customizable Alerts – Choose from 38 distinct chimes and adjust volume across 4 levels to suit your preference, ensuring alerts are always audible. 5. Easy Power Setup – The receiver plugs directly into a wall outlet indoors, while the transmitters are powered by 3 AAA batteries (not included), allowing simple installation in key outdoor areas.Specifications Color: Black Material: ABS Detection Angle: 120° Detection Range: 3–7 meters Wireless Range: Up to 200 meters (open space) Frequency: 433MHz Alert Tones: 38 options Receiver Power: 110–240V plug Transmitter Power: 3 × AAA batteries (not included) Transmitter Dimensions: 8.5 × 8 × 2 cm / 3.3 × 3.1 × 0.78 inches Receiver Dimensions: 8 × 8 × 5.5 cm / 3.1 × 3.1 × 2.1 inches Package Includes 2 × Transmitters 1 × Receiver