Very reliable and easy to install driveway alarm - Transmitter operates on one 9-volt battery and has 25 ft. of 3/8 in. diameter exterior hose that will lie across the drive - When a vehicle drives over the hose, a signal will be sent to the DCR-2500 receiver up to 1/2 miles away - Transmitter is weatherproof and meant for exterior locations - Up to 4 zones can be monitored with additional transmitters - Transmitters can be programmed so they will each sound a different tone at the receiver - Receiver: DCR-2500 - DCRH2500
