Gate Opener Warehouse

For Dual Swing Gates up to 18 feet long or 850 pounds per leaf.
Our most popular dual gate opener, the Mighty Mule® 502 Dual Gate Opener (FM502) has NEW commercial features rarely found in a do-it-yourself gate opening kit.

The Mighty Mule® 502 Dual Gate Opener (FM502) is a heavy duty, commercial grade unit that is very easy to install. 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 p rewired 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!

Use on solid (wood) gates is not recommended. Solid surface gates have a high resistance to the wind. If the wind is strong enough, the opener will obstruct and stop. For solid gates please see our GTO/PRO SW3000 or SW4000 series.

The Mighty Mule® 502 Dual Gate Opener is compatible with all accessories including solar panels

View User/Installation Manual

• 1 Complete Mighty Mule 502 Kit.
• 3 Additional RB741 1-button transmitters (Total of 4)
• 1 FM139 50 ft  w/Sensitivity Adjustment Board
• 1 F3100MBC Wireless/Wired Keypad Intercom System
• Installation hardware
• 10 ft. battery harness
• Receiver
• Installation manual (English & Spanish)
• Plug-in transformer
• Installation video
• 2 Warning signs

• 18 month Limited Warranty
• Solar compatible
• 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 225 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.