Vehicle Input Battery Alert with Infrared Motion Detection and Wireless Bell The Vehicle Input Battery Alert with Infrared Motion Detection and Wireless Bell is an essential tool for areas without direct visual contact with the entrance, providing immediate audio and visual notifications when someone enters the space. With a range of 80 meters in open space, it alerts you when a vehicle or person passes in front of it. The device operates on 6 AA batteries (3 in the receiver and 3 in the transmitter) and boasts a battery life of approximately 2 years. It features a low battery indicator for added convenience and easy installation without cables. Features: Wireless operation with a range of 80 meters in open space. Battery-powered with a battery life of about 2 years. Low battery indicator for timely replacement. Easy installation without the need for cables. Infrared motion detection for accurate alerts. Immediate audio and visual notifications upon detection. Suitable for both vehicle and person detection. Specifications: Main Unit (Receiver) Battery: DC 4.5V (AA * 3) Wireless Receiving Frequency: 433.85 ± 250KHz Wireless Receiving Distance: ≈80m (in open area) Low Voltage Indicator: Blue indicator when voltage is less than 3.3V Infrared Sensor (Transmitter) Battery: DC 4.5V (AA * 3) Wireless Transmitting Frequency: 433.85 ± 250KHz Wireless Transmitting Distance: ≈80m (in open area) Infrared Working Distance: > 4m Trigger Time: ≈3S Time Interval after Transmitting: ≈8S What’s in the Box: 1x Receiver 1x Transmitter The Vehicle Battery Alert with Infrared Motion Detection and Wireless Bell is a reliable solution for areas without visual contact with the entrance. Its wireless operation, long-range detection, and easy installation make it an ideal choice for both residential and commercial use, providing timely notifications when vehicles or individuals enter the space. Receive immediate audio and visual notifications with the Vehicle Input Battery Alert. With infrared motion detection and wireless operation, it’s perfect for areas without direct visual contact with the entrance. Easy to install and battery-powered for convenience.