Upgrade your security with advanced sensing technology. Combining microwave and infrared technology ensures accurate detection and reduces false alarms. Perfect for driveways, front porches, gates and more. Our sensor is powered by a built-in battery that is efficiently by a solar panel. Provides a hassle-free experience with no need to change batteries. In addition, the sensor can also be powered by a DC5V power adapter, which is more convenient. It can be expanded to 4 sensors and unlimited receivers, providing complete perimeter coverage. Our wireless driveway alarms detect the movement of people, cars and large animals. With 58 different ringtones, you can easily customize the alarm to your . The operating range between the receiver and the transmitter is up to 180 feet (about 548.6 meters), the range of the infrared sensor is about 20 feet (about 6.1 meters), when the thief tries to come, it detect And activate the 110 decibel alarm. Our products can withstand extreme temperatures from 55°C to -10°C, our products perform well in challenging weather conditions. It can withstand hail storms, high winds, heavy rain, scorching heat and heavy snow Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Voltage:AC100-240V Colour:Black & White & Gray Material:ABS Package Contents: 1 * Receiver 1 * Transmitter 1 * English manual 1 * wire Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.