The DCHT-4000 is a very reliable and easy to install driveway alarm. The transmitter operates on one 9-volt battery and has 25' of 3/8" diameter exterior hose that will lie across the drive. When a vehicle drives over the hose, a signal will be sent to the DCR-4000 or RE-4000 Plus receiver up to 1 mile away*.
The transmitter is weatherproof and meant for exterior locations. Up to 16 zones can be monitored with additional transmitters, depending on which receiver is used. The transmitters can be programmed so they will each sound a different tone at the receiver.
Operating Range: -30°F to 120°F
*Actual range will vary depending on the environment.
Note: this transmitter is only compatible with the 4000 series receivers