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 charged by a solar panel, providing a hassle-free experience with no need to change batteries. Additionally, the sensor can be powered by a DC5V power adapter for added convenience. It supports expansion up to 4 sensors and unlimited receivers, providing complete perimeter coverage. The wireless driveway alarm detects movement from people, vehicles, and large animals. With 58 different ringtones, you can easily customize the alarm to your preference. The operating range between the receiver and transmitter is up to 180 feet (approximately 54.8 meters). The infrared detection range is about 20 feet (approximately 6.1 meters). When an intruder approaches, the sensor will detect motion and trigger a 110-decibel alarm. The product operates reliably in extreme temperatures ranging from -10°C to 55°C and performs well in challenging weather conditions, including hail storms, high winds, heavy rain, intense heat, and heavy snow. Plug Type: EU Plug (compatible with Indonesia, Germany, France, Spain, Italy, and other EU regions) Voltage: AC 100-240V Color: Black, White, Gray Material: ABS Package Contents: 1 x Receiver 1 x Transmitter 1 x English Manual 1 x Wire Note: Light reflection and differences in display screens may cause slight variations in the color of the item shown in the picture compared to the actual product. Measurement may vary by +/- 1-3 cm.