New in bulk packing The item may be slight scratches on the surface due to transportation and storage, please understand * Try to avoid pointing the radar antenna directly towards large metal equipment, rotating fans or pipes, etc. * When placing multiple radar alarms, efforts should be made to ensure that the antennas of each radar module are parallel to each other, avoiding direct illumination between antennas, and maintaining a distance of at least 1m between modules. * Radar sensing device, suitable for outdoor use. * The receiver can connect 10 radars and communicate with them at a distance of 50-100 meters. * Adjustable alarm mode, vibration, buzzing, etc. * IPX7 waterproof, long endurance, and more durable. * Professional anti-theft equipment must be installed by professionals to ensure daily maintenance and repair. Parameters: Product size: 4 * 4 * 7cm Working voltage: 3.7v Radar frequency: 5.8GHz Wireless distance: 50-100m (open) Include As Option Shown