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Internet #100616424

Model #R4222

Store SKU #498660

Store SO SKU #1000097263

Photo Beam Sensors for Automatic Gate Openers with Hardware (Count of 2)

  • Can be mounted to a wall or a post
  • Direct wired application to your Mighty Mule gate opener system
  • Not compatible with solar powered gate operators
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Product Overview

Provide your gate with added safety with the Mighty Mule Photo Beam Sensors for Mighty Mule swing and slide gate openers. Photo Beam Sensors help prevent the gate from closing when an obstruction is in the path of the sensors. These Sensors can be installed inside or outside your gate with included mounting hardware. Additional low-voltage wire (RB509) is necessary for installation. The Photo Beams are required to be connected to each other, under the driveway is preferred and one Photo Eye requires to be connected to the operator location. Please see attached instruction manual for full detail.
  • Convenient added safety for your gate system to avoid unwanted closure
  • Easy DIY (do it yourself) installation that includes 2 photo beam sensors and mounting hardware
  • Direct wired application to your Mighty Mule gate system,
  • Required low-voltage wire (RB509) not included; 100 ft., 250 ft. and 500 ft. lengths available
  • Not compatible with solar powered gate opening systems
  • Backed by a 12 month Mighty Mule warranty and technical support
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Info & Guides

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Product Depth (in.)
6.9 in
Product Height (in.)
14.55 in
Product Width (in.)
3.8 in


Brand/Model Compatibility
Mighty Mule Gate Openers
Fencing Product Type
Gate Opener Part/Accessory
Part/accessory type
Product Weight (lb.)
2.1 lb

Warranty / Certifications

Manufacturer Warranty
Backed by a 12 month Mighty Mule warranty and technical support

Questions & Answers

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Customer Reviews

  • 3.9
    out of 6 reviews
  • 33%recommend this product
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Showing 1-6 of 6 reviews
Worked as described ...
Worked as described
  • Verified Purchase
5 Star Review
Rating provided by a verified purchaser
  • Verified Purchase
5 Star Review
Rating provided by a verified purchaser
  • Verified Purchase
Had to get the instructions online, they were not included with the product. Does not work properly because the instructions say to not mount them in full sunlight, so what am I supposed to do? Plant a tree next to the gate and wait a few years?
  • DIY
  • Verified Purchase
1 person found this helpful
Photo Beam Sensor works
This sensor was installed outdoors on a rifle range. Sperated by 80 feet, signal strenght was strong. Broken beam time delay of 2 seconds allowed for momentary siren and notification of potential issues down range. 12 volt dc system makes it applicable for power outages and portable.
  • DIY
  • Verified Purchase
  • Recommended
2 people found this helpful
This review is about the GTO R4222 photo cell. I purchased one direct from the manufacturer and another from Home Depot, which was less $$. The Home Depot unit was newer and works fine, the first was an older model and did not work. The company, Gates That Open, uses several shell companies to internet market their own products. In general the staff are polite. That having been said, the service is poor. The manuals, printed or online, are sketchy, inaccurate and conflict each other throughout. The website has trouble shooting guides but they are poorly organized and incomplete. Only direct calls to the support center gets you an answer. Calls are not returned. E-mails are not returned. My own invoice form the manufacturer (first unit) did not even have a date on it. I would shop elsewhere for products of this type next time.
  • Pro
5 people found this helpful
Showing 1-6 of 6 reviews