Mighty Mule Wireless Driveway Alarm-FM231WB - The Home Depot

Mighty Mule

Model # FM231WB

Internet # 202072041

Store SKU # 653097

Wireless Driveway Alarm

Mighty Mule Wireless Driveway Alarm

This item has been discontinued.
The Home Depot no longer carries this specific product.

$59.97 / each


Model # FM231WB

Internet # 202072041

Store SKU # 653097

Store SO SKU # 556771

The Mighty Mule Wireless Driveway Alarm alerts you when a guest enters your driveway. The alarm uses reliable electromagnetic vehicle detection to sense when a vehicle is passing through your driveway. With electromagnetic technology, the Wireless Driveway Alarm avoids false alarms from an animal or person. With an extensive reception range of 400 ft. it adds security and convenience to your property.

  • Electromagnetic technology that detects and alerts of vehicle(s) moving within a 3 - 12 ft. radius of the sensor.
  • Easy DIY (Do It Yourself) installation for your property.
  • Alerts you with a chime when your visitors approach.
  • The Alarm features a sensitivity adjustment to adjust to your comfort.
  • Backed by a 12 month Mighty Mule Warranty and Life Time Technical Support.

Info & Guides

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Assembled Depth (in.)  5.5 in  Assembled Height (in.)  3 in 
Assembled Width (in.)  13.5 in  Product Depth (in.)  5.25 
Product Height (in.)  Product Width (in.)  13.5 
Access Controls and Powering Devices  Sensors  Brand/Model Compatibility  Mighty Mule FM231WB 
Commercial/Residential Use  Residential  Fencing Product Type  Gate Opener Remote/Transmitter 
Power Requirements  AC  Product Weight (lb.)  3 lb 
Range (ft.)  400  Returnable  90-Day 
Warranty / Certifications
Manufacturer Warranty  12 month limited 


Rated 3.8 out of 5 by 132 reviewers.
Rated 5 out of 5 by A great buy! I purchased this product over 6 months ago and it has worked perfectly. No false alarms which was a problem with my previous driveway alarm which was sensitive to animals and temperature changes. I have a long driveway, so there is relatively little traffic that could create a false alarm. I have the sensor installed about 75 years from the base station. Given the price of this unit, I expected it to be too good to be true. But I was wrong. I'd highly recommend this product for anyone looking for a driveway sensor. December 24, 2012
Rated 5 out of 5 by Very good driveway alarm Driveway alarms have gotten better and cheaper over the last 10 years. There are basically 2 kinds; the magnetic sensor (like this one for vehicles) and the motion sensor, for people, animals, vehicles and anything that moves. Motion sensors tend to give more false alarms do to branches or brush moving in the wind. This one has been working very good for me. I found a spot about 150 feet away with a pretty clear view of the receiver to mount the transmitter. I slid the sensor in a 3" PVC culvert that ran under the driveway, it even picks up my bicycle when I ride over that spot. Keep in mind the line of sight from the spot where you mount the transmitter to the receiver in your home and try to avoid obstacles that will block the signal. The 400 foot (listed) range would only be for optimal placement without any signal interference, 250 feet is more realistic. June 17, 2014
Rated 5 out of 5 by This product works well & looks great on driveway. The products works very well & I like the way it looks on the driveway. It has a very professional look to it. April 26, 2013
Rated 5 out of 5 by Why did I wait so long?! This product was super easy to install and works great. I'm on 5 acres with a wide open panoramic view from a full glass living room and entry. Unfortunately, my long side driveway is not visible from most of the house. Before I installed this unit I didn't know anyone was even on my property until they were right at my door looking in. Kind of creeped me out--especially at night. Well, no more of that. I've got my privacy back! The tone from this unit can be heard throughout the house and gives ample time to decide whether or not I'm "at home" :o) Why did I wait so long to buy this simple, reliable, inexpensive product? Beats the heck out of me. February 6, 2012
Rated 4 out of 5 by Great value for a magnetic driveway sensor The alarm sensor was easy to set up and reliably detects vehicles. The receiver is about 100' from the detector and works fine, except, the alarm could be a little longer and louder. September 2, 2014
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