Dual Probe Transmitter With Dcr-4000
Dual magnetic vehicle probes sense vehicle direction Probes connect to wireless transmitter Wireless receiver can play a different tone for vehicles that are coming vs going (entry vs exit) Transmitter is battery operated by 3 x CR123A batteries (not included) Receiver comes with plug-in power supply Range up to 1 mile / 5280 feet / 1.6 km* maximum