Wireless Rubber Hose Alert 3000- Dakota Alert wireless rubber hose alert 3000- A very reliable and easy to install driveway alarm- Thetransmitter operates on one 9-volt battery and has 25 of 3/8"" diameter exterior hose that will lieacross the drive- When a vehicle drives over the hose a signal will be sent to the WR-3000 receiver up to 3 000 feet away (depending on terrain)- The transmitter is weatherproof and meant for exterior locations- Up to 4 zones can be monitored with additional transmitters- The transmitters can be programmed so they will each sound a different tone at the receiver- The WR-3000 is the receiver for the WRH-3000 system- WR-3000 plugs into a standard wall outlet and can be placed on a table or mounted on the wall- When the receiver gets a signal from the transmitter one of four different tones (Classical Westminster Chime Ding Dong or Whistle) will sound- Volume control- WR-3000 is equipped with four form ""C"" relays (one for each zone) and one 12-volt DC output terminal that will activate for several seconds when a signal is received- The receiver can be user-programmed so the 12-volt DC terminal and one relay will activate for 10 minutes if this is desired; the tones will still sound for several seconds- AshDKWRH3000 SKU: TDDK-WRH-3000