The transmitter operates on one 9-volt battery and is easily mounted on a tree or post near the drive. The transmitter uses a passive infrared (PIR) beam to detect people or vehicles to a distance of up to 80 feet, then sends a radio signal back to the WR-3000 receiver up to 600 feet away*.
The transmitter is weather proof and meant for exterior locations. Up to four zones can be monitored with additional transmitters. The transmitters can be programmed so they will each sound a different tone at the receiver.
* Actual range may vary depending on the local terrain.
