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Access Control Type
Gate Control
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Automate Your Gate!
Easy to Instal Motorized Dual Gate System
Double-Gate Automatic Gate Opener System
Item# 7413B
Price: Normally $899.99 
Hot Deal $740.00
Free shipping on orders over $50 - See Details


  • Easy to install low voltage system, no electrician or welding required
  • Commercial Grade Soft Start / Soft Stop feature increases life of hardware and opener
  • Large control box with room for extra battery and accessories
  • Works on all gates
  • chain link, tube, panel, ornamental, wood and vinyl
  • Provides up to 115 cycles per day using transformer charger
  • UL APPROVED - obstruction sensing enhances gate operation safety
  • Adjustable gate activation alert and auto-close
  • 12-volt battery backup (included) opens and closes the gate even during power outage
  • Designed for gates that open into or out from the property

Essential Info

Tired of stopping your vehicle and manually opening/closing your gate every time you leave or come home? Simplify the process with this single-gate automatic gate opening system that lets you control your gate from the comfort of your vehicle! Just press the entry transmitter in your car (similar to a garage door opener) and the Automatic Gate Opener will open your gate. Once you exit, you can close the gate with another press of the remote, or it will close by itself 60 seconds later — so you'll never accidentally leave it open. For Double Swing Gates up to 18 feet long or 850 pounds. Also available in a single gate version.


What's Included

  • Mighty Mule 502 Dual Gate Opener - FM502
  • Gate opener w/ 6' power cable
  • Gate opener w/ 40' power cable
  • Installation video
  • Transmitter
  • Battery
  • Receiver
  • Control box
  • Transformer
  • Brackets and mounting hardware
  • More Info

    The Mighty Mule 502 Dual Gate Opener (FM502) is a heavy duty, commercial grade unit that is very easy to install. It is designed for installation on a pull-to-open dual leaf gate (gates that open into the property). It has upgraded commercial features such as "soft start "and "soft stop" that will extend the life of your gate hardware and gate opener. Another feature is the extra large control box that is prewired for an optional second battery. (We recommend a second battery for solar applications.) All these advanced features are contained in a easy to install, "Do it Yourself" kit. The Mighty Mule kit includes a helpful installation video and detailed manual so you can install it yourself!

    The Mighty Mule E-Z Gate Opener features adjustable obstruction sensing. This safety feature makes the gate stop and reverse direction within 2 seconds when it comes in contact with an obstruction. MIN is the factory setting; meaning the gate will exert the minimum force on an obstruction before it stops and reverses direction.

    The Mighty Mule E-Z Gate Opener also has an adjustable auto-close feature. After the gate reaches the fully open position, it can be set to remain open up to 120 seconds before automatically closing. Pressing the transmitter button at any time after the gate opens fully will cause it to close immediately. OFF is the factory setting; meaning the
    gate will stay open until you press the transmitter (or keypad, etc.) again.

    Expand and Upgrade Your System With These Add-On Accessories:

    Automatic Gate Opener Transmitter w/Visor Clip (#7413V)— Keep an entry transmitter handy and out of the way with this transmitter/visor clip combo.

    Keychain Transmitter (#7413ME) — This miniature version of the included entry transmitter attaches on the end of your keychain, so you'll always have it handy.

    Electronic Gate Lock (#7413GL) — Use this zinc-plated bolt lock to provide additional security to your gate.

    Digital Keypad (#7413DK) — Program up to 15 codes for your gate … perfect for visitors and delivery people! You can always change the codes if you want to block access at a later time. Can be hardwired or wireless.

    Master Pin Lock (#7413PL) — Protect your gate opener from theft with this lock that replaces the clevis pin.

    Solar Panel (#7413SP) — Is your gate more than 1,000 ft. from the nearest AC power source? Then charge the battery with one or more of these 5-watt solar panels.

    Gate Opening Sensor (#7413OS) — Designed for residential and agricultural applications and is compatible with all Mighty Mule automatic gate opener models. The Gate Opening Sensor is an electromagnetic sensor, which offers 'hands free' operation of the Mighty Mule Automatic Gate Opener with a 12 ft. radius of detection of vehicles in motion.

    Push Button Gate Control (#7413PB) — Used for remote entry or exit control. It wires directly to the control board using the low voltage wire (#7413LW, sold separately).

    Column-Mount Bracket (#7413CM) — For mounting the Automatic Gate Lock on brick columns, walls, or for other applications with limited space between gate and post.

    Column Mount Lock Receiver (#7413LR) — For mounting the Automatic Gate Lock on brick columns, walls, or for other applications with limited space between gate and post.



    Manufacturer:GTO, Inc.
    Manufacturer Product No.:FM502
    Drive:Low friction screw drive (linear actuator) rated for -5ºF to + 160 ºF
    Power:12Vdc, 7.0 Ah, sealed, rechargeable acid battery
    Motor Speed:260 rpm - 680ft lb. torque at 12v
    Full Specs:Please refer to manual


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    Average Customer Rating
    (2 customer ratings)
    Share your thoughts with other customers
    Jess -- Missouri   1/29/2013
    I agree with everything Ted says. I've actually purchased multiple circuit boards they're designed to last 3 years and multiple actuator arms, as I've struggled to keep my system running. One of my arms has black tape wrapped all around it, since the cracks in the non-sun-resistant plastic let in light, which messed up the goofy photodiode-and-spinning-wheel position tracking. That one took me forEVER to figure out. The troubleshooting document on any kitchen appliance you can buy puts this system's to shame. If you call up GTdO they just tell you you need to buy a replacement circuit board, and it ain't cheap. I'm currently saving up for a better system, and would appreciate any advice.
    Ted -- carnation, WA   3/3/2012
    You get what you pay for. I have had this product for 6 years. The first couple years it worked pretty good. Since then it needs servicing more and more. This time I haven't been able to fix it. It has trouble with cold weather. It uses slip connectors that fail. The limit switch design is horrible and they fail every couple years. The diagnostics are awful. Regardless of what is the problem is it beeps the same way. If you buy this and expect to maintain it yourself, be sure you own a decent multimeter and just keep a toolkit handy, because it will likely fail when yo really need to get out. And get yourself some extra torque bits as you will need them when you are sitting on the ground in the snow taking out the 14 torque screws so you can see what has gone wrong this time in the arm. I am so sick of fixing it I can't tell you. Spend a little more and get something more reliable.
    Tim Volckmann -- michigan city, IN   10/25/2007
    Good product, installed this for a customer, make sure you get the second battery, it makes everything work much better...also be sure you order the extra cable as the second arm only has about 50 ft of cable, so measure first!

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