Mighty Mule FM231 Wireless Driveway Alarm and freeze-proof so you can

and freeze-proof so you can use it indoors or outdoors year-round

the brightness of 1-40W incandescent bulb

Take the guesswork out of finding the right socket

Exposure: Full Sun

6 ft Minimum Head - 60Hz 1 ft Shut Off Height - 60Hz 4

Mighty Mule FM231 Wireless Driveway Alarm and freeze-proof so you canThe Mighty Mule FM231 Wireless Driveway Alarm Instantly alerts you when someone pulls into or out of your driveway. The outdoor electromagnetic sensor only detects vehicles; no false alarms due to animals, children, etc. When a vehicle passes by the sensor, an outdoor transmitter communicates wirelessly to an internal base station up to 400 ft. away and sounds a pleasant chime. Easy to install Electromagnetic Sensor Wand is buried next to your