Best Mighty Mule FM143 Automatic Gate Lock

Mighty Mule FM143 Automatic Gate LockBuy Mighty Mule FM143 Automatic Gate Lock

Mighty Mule FM143 Automatic Gate Lock Product Description:



  • The FM 143 automatic gate lock is compatible with all single and dual GTO/Mighty Mule swing gate openers, including the FM500, FM502, FM350, GTO PRO-3000XL, PRO-3200XL, PRO-4000XL and PRO-4200XL
  • Ideal for animal enclosures, high wind areas, with gates over 8-Feet long or where security is a concern
  • The automatic gate lock comes with all necessary hardware for normal installations, but the 433-IH column mount lock receiver is recommended for use on certain column-mount or post-mount installations
  • Comes with a two keys and a keyed manual release

Product Description

The Automatic Gate Lock provides peace of mind and added security for your gate. It unlocks and locks automatically as the gate is activated to open and close. Wired directly to the gate opener's control box, it is activated by any one of the many GTO/Mighty Mule Access Controls, including the Entry Transmitter, the Gate Opening Sensor, the Digital Keypad or the Push Button Control. The automatic gate lock provides maximum stability and security on Mighty Mule gate openers, and is highly recommended for animal enclosures, high wind areas, and gates over 8ft. long. Application: Lock, Works With: GTO/Mighty Mule automatic gate openers

Customer Reviews

Most helpful customer reviews

7 of 7 people found the following review helpful.
5works like a charm
By Julie M. Schlecht
easy to install, arrived as scheduled. Just needed a little adjusting to get gate to latch and lock because the gate kind of bounced when it closed but that was more of an adjustment to the closer than the latch. Once the adjustments were made we have had no problems. Keeps those uninvited 'guests' from popping in on us all the time haha!

9 of 11 people found the following review helpful.
1DO NOT BUY THIS PRODUCT.. OR ANY MIGHTY MULE PRODUCT!!!
By Jacque R. Touzet
I purchased a Might Mule Gate opener for my carport gate and installed it as per the instructions about a year ago. The opener has worked satisfactorily, but accessories like the gate lock have been a problem.Customer service HAS BEEN HORRIFIC. I cannot believe how slow and unhelpful those folks are.Please note that the description for this lock is meager and says nothing about model specificity. As a matter of fact, my control board has "lock" inputs for "easy" installation. After reading and rereading the instructions, no mention that this lock will not work with my model (MM200). After installing, I began a fruitless campaign to get the techs to troubleshoot why my lock would not engage, despite the fact the opener and the lock instructions state it should work with any model opener.The really annoying thing is that calling in to tech support is a fools errand. You stay on hold forever and eventually get disconnected. Finally, I went the email route, and turn around was about a week per communication!! Ridiculously slow, and the exchanges would often have stupid questions back like "did you connect the red and black wires to the control unit". Well, yes, I'm not retarded.....Finally, they punted and said that since my unit was designed to push a gate closed instead of pull it closed, that is why the lock would not function. What is interesting and pretty sad is that they resorted to threats instead of troubleshooting. The tech that slowly responded only stated that since my opener pulled in stead of pushed, I likely voided the warranty. No help on trouble shooting the problem after several emails back and forth.What is laughable is that assuming their theory is correct, the lock should engage when my gate is fully opened. This machine has no eyes and cannot know that the gate is opened or closed. Just that the arm is at full extension. Yet, the lock does not engage when fully "opened" in my case or fully closed as per the tech's assertion. It only clicks and does not operate. So, the problem is not related to the push or pull issue.. it's a lock/unit issue. When I passed this on, a week late response only reiterated the same foolishness: the gate has to be pushed shut to operate the lock. Idiots.....Don't buy any of their crap.....

4 of 4 people found the following review helpful.
5Strong security, protect your gate armature
By Steven W. Gisselberg
This is the best protection against vandals or individuals pushing hard on the gate arm. Most gate arms can take some pushing, but if a vehicle or person pushes hard enough, and if the gate is large, the arms will get damaged and will have to needlessly be replaced. A Gate lock is a must and this new version has a nice powdercoated black finish that blends in nice with most gates.

See all 31 customer reviews...


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