How can an electronic driveway sensor help someone with mobility issues?

If you need extra time to get to the door to greet visitors, consider installing an electronic driveway sensor that will sound a chime and flash to alert you when a car approaches. For added security, an optional lamp controller will turn on a light or radio. Set the driveway sensor to open a door or gate or perform different functions based on whether a car is arriving or departing. The remote-controlled device has a 1,000-foot range that will work even in long driveways.