Wireless driveway alarms - Not motion based

[RalphVa]

We've 2 Dakota alert ones: one for driveway and one for the mailbox. Work great. Work just like the old air line service station alarms but with transmitters on the air lines with receivers in the house.

Tried a motion sensor type initially. Didn't work worth a flip. However, our remote gate has a motion sensor built in that works fine.

Ralph

 

[Industrial Toys]

Sure Action Directional Probe Driveway Sensor with Wireless Chime Vehicle Detector for Annunciation Lighting Gate Control: Amazon.ca: Camera & Photo

That's the equipment I use, But hard wired, and with a lightning detector (cancels out lightning false tripping)