HTZSAFE Solar Wireless Driveway Alarm System 1/2 Mile Long Transmission Range
Fully expandable system, up to 32 HTZSAFE sensors can be added to the 1 receiver; and 1 sensor can be added to unlimited receivers. (Restart the receivers or sensors will not miss the records). SOLAR WIRELESS ALARMS : Solar powered, no wiring no need replace battery.
Driveway Alarm-Wireless Original Bell and Chime Kit with Two Transmitters -100
ThisMilton driveway signal bell kit effectively monitors vehicle traffic using two transmitters. Eachblack box transmitter operates on a9-volt transistor battery for long-lasting performance. Wireless Driveway Alarm Kit – Dual Entrance Monitoring with “Original” Bell™.