The WMA-3000 is the next step in the evolution of the driveway alarm/motion alert systems. The transmitter can be mounted easily on a tree or pole near the driveway, and operates on one 9-volt battery. The transmitter uses a passive infrared (PIR) beam to detect any movement (people, vehicles, etc.) up to a distance of 80 feet. It then sends a radio signal to the receiver (WR-3000) up to 600 feet away (the actual range might vary depending on the nearby terrain).
