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Might Mule FM502 Dual Swing Gate Opener (FM502)
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Might Mule FM502 Dual Swing Gate Opener (FM502)

Sale Price: $729.99


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The Mighty Mule FM502 Dual Opener is a practical system that allows for easy installation. Because this opener uses a low voltage charge, it is unnecessary to employ an electrician for installation, saving the customer some extra money. Also, the low voltage design allows the customer to use a household outlet within 1,000 ft. of the operator by running a 16-guage low voltage cord between the two. For customers who are eco-friendly, or who wish to save on electrical bills, it is also possible to use a solar panel to charge the battery. The Mighty Mule FM502's oversized control box can hold two 7 amp/hour batteries (second battery not included). This means the unit has the capacity for extra power storage for solar power, as well as for higher opening cycle situations.

In addition, this unit can be used in a variety of layouts. Useful for residential situations, this opener can be used with gates constructed from a variety of materials, including, steel, aluminum, wood, and chain link, along with many others. Similarly, the Mighty Mule FM502 can be enhanced with a push-to-open bracket accessory (not included) to push the gate open away from the property, while the arms remain mounted on the side closest to the property. This system is also compatible with a variety of accessories, including keypads, transmitters, exit wands, gate locks, solar panels, etc.


The Mighty Mule FM502 Dual Opener is a practical system that is easy to install. Because of its low voltage system and uncomplicated design, there is no need to employ an electrician or welder for installation, saving the customer extra money.

  • Gate Length and Weight - Up to 18' in length or 850 lbs per leaf
  • Gate Materials - Wood, Steel, Aluminum, Vinyl, Chain Link, and more
  • Gate Post or Column Size (pull to open design) - Max 4"x4' post or gate mounted 2' from the rear face of a column (the gate side facing the property)
  • Push to Open - Yes (bracket sold separately); setback does not apply to push to open
  • Power - Battery (included) and Low Voltage Trickle Charge (included; 12V DC system)
  • Solar Compatible - Yes
  • Learn Mode - The learning mode allows the customer to set end points with a remote. Using the transmitter, the user tells the opener where to stop, and then these settings can be saved on the control board.
  • Soft Start/Soft Stop - This feature eases the wear and tear on the gate. During a normal cycle, the opener automatically slows the motion of the gate near the stop points so the gate closes smoothly and with minimal impact. This feature can also be switched off.
  • Closing Timer - The closing timer allows the customer to set the gate to close automatically at 0 to 120 seconds after the gate has reached the fully open position. The customer also has the option of leaving this feature off so the gate remains open until an entry device activates the closing motion.

In addition to providing innovative and renowned products, DIYGateOpeners.com has a unique website that allows customers to truly visualize their security aspirations. On the website, customers can utilize the virtual builder to create a representation of their home security gate system, complete with varying gate materials and designs. The customization doesn't stop there, however. DIYGateOpeners.com ensures that all points of gate opener installation are taken into account by offering such considerations as distance to the power supply, distance from the house to the gate, the number of homes secured by the gate, etc. By giving customers the opportunity to take these points into consideration, DIYGateOpeners.com ensures that the realization of the design is not only effective but also possible; there will be no trial and error with fitting the proper gate opener to a customer's security needs. Furthermore, our Discount It Yourself packages allow customers to choose exactly what they need, not what someone else thinks they want. Every gate opener design is truly customized to the consumer's specifications.

The website design is all about putting the customer’s needs first, and DIYGateOpeners.com does not stop there. The difference of any gate opener or accessory that a customer finds on an authorized dealer's website for cheaper will be refunded, plus 10% of that difference. Similarly, if the 9am-9pm EST Tech Support Hours do not fit a customer's schedule, the customer need only send in an e-mail detailing expected installation time, and DIYGateOpeners.com will respond with a number for the customer to reach a representative during the scheduled installation. How many other companies will alter their business hours for a customer? At DIYGateOpeners.com, the customer really does come first.

QB ID: FM502

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