General Description: This wireless solar-powered driveway alarm is an effective security system consisting of a solar-powered transmitter and receiver. The receiver has a digital display for easy monitoring of alarm status. With a range of 200 to 300 meters, it can monitor a wide range of activities. The alarm offers three detection sensitivity levels to suit your specific needs. Technical Specifications Material: ABS Receiver dimensions: 85 x 85 x 26 mm / 3.35 x 3.35 x 1.02 inches Transmitter dimensions: 150 x 90 x 43 mm / 5.91 x 3.54 x 1.69 inches Weight: 480 g / 16.93 oz Transmitter voltage: DC 5V Alarm current: 500 mA Detection angle: 120° Static current: 120 µA Operating temperature: 30-50 ℃ Transmission frequency: 433 MHz FSK Transmission distance: 200-300 m / 656.16-984.25 ft Action distance: 30 mm / 1.18 inches Low sensitivity: 5-8 m / 16.4-26.24 ft Medium sensitivity: 8-12 m / 26.24-39.37 ft High sensitivity: 13-16 m / 12.2-15.4 m Battery: 3.7V/500mAh Solar panel: 5.5V 100mA monocrystalline silicon Music: 38 songs Volume: 4 levels (high, medium, low, silent) Water resistance: IP60 Installation The driveway alarm is easy to install thanks to its plug-and-play design. Simply connect the receiver to a power source and place the transmitter in a sunny location for the system to operate. The 120° detection angle ensures complete coverage and reduces blind spots. Usage This alarm is ideal for monitoring driveways, entrances, garages, and other outdoor areas. With 38 selectable melodies and 4 volume levels, you can customize the alerts to your preferences. The system uses FSK 433MHz wireless transmission technology to ensure stable and reliable signal transmission. Other information: Contact type: 110V US plug, 220V EU plug, 220V UK plug (optional). Configuration options: 1 transmitter + 1 receiver, 2 transmitters + 1 receiver, 1 transmitter + 2 receivers (optional). Package contents: 1/2 x transmitter (optional), 1/2 x receiver (optional), 1 manual