U.S. Automatic Sentry 300 Series Single Swing Solar Gate Opener



Price:$795.81
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   Product Details
  • Gate Opener At a Glance
  • Gate Crafters.com Exclusive Product & DIY Additions
  • Customer Installations
  • Gate Opener Description
  • Tools & Supplies for Installation
  • Customer Testimonials
  • Gate Opener Features
  • Included with the Gate Opener Brand
  • Product Media


  •    Gate Opener At a Glance Top of Page

    This US Automatic gate operator is not compatible with EMX IRB-RET Photo Eyes.

    The U.S. Automatic Sentry 300 series single swing gate opener is the most reliable and durable gate opener available backed by a Limited 3 year electrical / 3 year mechanical warranty. Made in the USA, this gate opener features Plug N Go wire connections, pre installed components, and universal mounting brackets.

    • Gate Materials: Ornamental Iron Gates, Farm Gates, Ranch Gates and Chain Link Gates
    • Weight and length: Up to 20' in length or 400 lbs. Fit Your Gate Type
    • Max degree of opening: 90 degrees
    • Gate Post or Column size (pull to open): The pre-drilled hole on actuator bracket must be located 5" behind the gate hinge and 8" to the inside of the property.
    • Push to Open: Yes. The pre-drilled hole on actuator bracket must be located 7" in front of the gate hinge and 4" to the drive side of the hinge.
    • Solar Compatible: Yes (5 watt panel kit sold separately)
    • Power: 12 volt DC battery (not included)
    • Power Wire Specification: Transformer is supplied with 12 feet of cable, if extension is needed use Sentry Charge Cable Extension Kit (part #630050).
    • Operating Temperature: -22 to158 F
    • Warranty:3-year control board/ 3-year component warranty.
    • Backed by a 3 manufacturer control board warranty / 3 year component manufacturer warranty
    • (Click Here for Warranty Pros and Cons) **Will need to be installed with a UL 325 complaint monitored safety device to function.**
    GateCrafters.com offers more expert assistance than anyone. If you need help deciding if this gate opener has the abilities that are right for your gate we have live application specialists available 9am - 9 pm EST 7 days a week or try our exclusive gate opener recommendation tool 24 hours/day.

       Gate Opener Description Top of Page

    U.S. Automatic Sentry 300 Series Single Swing Gate Opener

    The Plug N Go design of all installed components and the easy to understand Sentry control board makes this the simplest gate opener for the Do-It-Yourself installer. Typical installation time is under one hour.

    The Sentry 300 automatic gate opener is powered by a 12-Volt dc battery (not included). This battery is charged by the supplied transformer which requires AC power (120 VAC) to be either at the gates area or within 1000 feet of the gates area. If the AC power is more than 10 feet from the gate openers control box then additional extension cable is required.

    The automatic gate openers solar charge method is optional and requires the Sentry solar panel kit (sold separately) for proper operation. Typically only one panel will be required. The Sentry single swing gate opener is capable of a high number of cycles per day. For information on what you can expect from a solar charged system see the solar charging section of this site. Accessories that are added to your gate opener must be solar friendly accessories and they will be identified as such. Review the solar region map to determine the number of cycles per day you can expect from a solar charged system.

    The Sentry 300 control board features high quality components and industry leading ideas such as auto resetting fuses for motor protection. The old auto type fuse that blows and must be replaced has been designed out of this controller to avoid the unnecessary expense of buying fuses. Another patent pending item designed into the control board is the on board potentiometers for adjusting stop limits.

    The Sentry 300 Series Gate Swing Swing Gate Opener by U.S. Automatic is proudly manufactured in the U.S.


    GateCrafters.com is the DIY factor. GateCrafters.com further adds to most of our gate openers for easier DIY installation. We have developed exclusive components (example: easy adjustable mounting brackets), customized instructions, and offer a full spectrum of accessories to truly cover all aspects of the installation of your gate opener. In addition we have the largest staff of factory trained technicians in the US.

       Gate Opener Features Top of Page
    • Remote Transmitters Included: 2 transmitters come standard to open the gate from your car
    • Wireless Ability: Plug N Go harness eliminates wiring
    • Solar Compatible: Up to 50 cycles per day (with 5 watt solar panel kit)
    • Preinstalled Components: With components preinstalled, set up time is minimal
    • Universal Mounting Brackets: Bracket hardware is provided for both round and square posts
    • Charge Controller and Transformer: These two patent pending products are included with all operators
    • Installation How-to: Provided color installation manual/DVD
    • USA manufacturer: The 16" stroke linear actuator is made in United States
    • Warranty: Limited 5 year electrical / 3 year mechanical warranty
    GateCrafters.com has the resources you need. How do you use your gate opener system once you get it? GateCrafters.com is the only retailer to give a real answer to this question. We have develop videos for installing many of our gate openers and products and write DIY focused manuals for most gate openers and have individual instructions for each accessory to be installed with each gate opener.

       Included with the Gate Opener Brand Top of Page
    • Linear Actuator Arm
    • Plug N Go Harness
    • 1/2" Cable Gland
    • Entrapment Siren
    • Set of 2 Safety Signs
    • Set of 2 433Mhz Transmitters
    • Transformer
    • Hardware kit
    • Control Box with Installed Components:
      • Charge Controller
      • LCR Receiver
      • Control Board
    • Universal Actuator Bracket
    • Square Post Flush Mount Bracket
    • Round Post Flush Mount Bracket
    • Actuator Bracket
    • Gate Bracket
    • Gate Support Bracket
    • Set of 2 Bronze Bushing
    • Manual release pin
    • Manual release clip
    • Color Instructional Manual & DVD
    Included Parts:
    Graphics from Manual
       Gate Crafters.com Exclusive Product & DIY Additions Top of Page
  • 360 degree accessories - we can take you through exit, entry, safety, power, and all other minute details to create a fully rounded kit.
  • Free 24/7/365 Installation Support
  • Free 7 day/week Technical Support
  • Largest Number of Certified Techs in America
  • Free assistance to find the right gate opener for your gate
  • Free systems design assistance to match the right accessories to fit your needs.
  • Extremely competitive pricing
  • Free shipping on all accessories purchased with a gate opener
  • We stock all replacement parts
  • Many brands of many types of accessories, enough to handle just about any operational situation you can imagine
  • GateCrafters.com has actual experience. We have a testing area, we have factory and internal training courses, we build driveway gates and have our own gates that are automated, we attended all industry trade shows in multiple countries and are a member of the AFA, and we pay visits to our chosen manufacturers' factories. All these factors are what have lead to us having so many exclusive additions. When you see and actually use as many products as we have you tend to have many ideas for minor changes that have major impacts. We acted on these ideas and have utilized them to help thousands of customers automate their gates.
       Tools & Supplies for Installation Top of Page

    The following tools and supplies are suggested in the manufacturer's manual for optimal installation. They are not provided by GateCrafters, however, most tools are available at local hardware stores for purchase or rental.

    • Wrenches - 7/16, 9/16 and 10mm
    • Sockets 7/16, 3/8 and 5/16
    • Drill
    • Drill bits 1/4 and 3/8 inch
    • Drill adapter for socket attachment
    • Pliers
    • Hack saw
    • Level and tape measure

    Welding is the recommended method of securing the linear actuator mounts to the gate and hinge post. Bolt on brackets are provided and are acceptable but may require frequent service to keep tight. They must be very securely attached (i.e. carriage bolts with lock nuts and washers). Lag type bolts are not recommended. Loose or unstable linear actuator mounts will result in improper operation.

    Depending on the type of gate, power supply and contributing environmental factors additional tools or supplies may be needed. Please review the product manual associated with this gate opener model for further details.

       Customer Installations Top of Page
    US Automatic Sentry 300 Single Swing Gate Opener    
    Multimeter All submissions receive a FREE Multimeter.
    Email them to customerphotos@gatecrafters.com.

       Customer Testimonials Top of Page

    Be the first to write a testimonial for this product. Please send them to Testimonials@GateCrafters.com.


       Product Media Top of Page


    Manual: sentry gate opener manual
    Manual: install gate opener
    QB ID: 020320