The RCTD-20U Wireless 2000 is a reliable motion detection and alert system designed for indoor and outdoor use. With a 2000-ft transmission range, it provides advanced perimeter awareness and remote monitoring for homes and businesses. This system is easy to install without wiring and supports up to 9 transmitters, making it highly versatile. It also includes adjustable detection patterns and a relay output for activating external devices. For expanded coverage, the TR-10U Repeater and TC-10U Wireless Transmitter can be added.