SECRUI Driveway Alarm, Wireless Oudoor Motion Sensor Alarm with 58 Chimes,Weatherproof Motion Detector, 20ft/40ft PIR Detection Range-Protect Outside Property,Black,1 Receiver 2 Detector - M520+P861

• 1000Ft Wireless Range : Our lane sensors use infrared technology detection technology, and the wireless signal transmission distance between the sensor and receiver is approximately 1000 feet. The detection distance of the motion sensor for the detected object can be set to 20Ft or 40Ft, which can be used outdoors to protect your outdoor property. Motion Detection:The secrui driveway alarm includes a motion sensor and a plug in receiver. When a human body or moving object passes through the detection area of a motion sensor and dynamic motion occurs, the motion sensor will send an alarm signal to the receiver, and you will promptly know that someone or a car has passed by your home. Waterproof Motion Sensor: Our motion sensor has a waterproof rating of IP65. There are also two detection ports that can be replaced: circular and oval. You can install different detection ports for the sensor according to your desired detection range. 58 Ringtones &Volume Adjustable: Our outdoor motion sensor of receiver has 58 songs to choose from. You can briefly press the music button to switch music, and choose your favorite track as the alarm ringtone according to your personal preference.The plug in receiver can adjust according to the desired volume. When you press the volume button briefly, you will be able to adjust a volume level. Expandable: Additional receivers or motion sensors can be added to the original combination to help you expand your detection range., Manufacturer: secrui