U.S. Automatic Sentry 300 Series Dual Swing Gate Opener - W/ AC

The U.S. Automatic Sentry 300 series dual 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. per leaf 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 VDC maintenance free lead acid, Gel or AGM battery rated at a minimum of 35-amp hours group size U1 (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 manufacturer control board/ 3-year component manufacturer warranty
(Click Here for Warranty Pros and Cons)

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

• 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: The16" stroke linear actuators are made in united states
• Warranty: 5-year manufacturer control board/ 3-year component manufacturer warranty
• Will need to be installed with a UL 325 complaint monitored safety device to function.

• 2) 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

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.