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    USAutomatic Sentry 300S Automatic Gate Opener

    35.00 LBS
    Usually ships in 24 Hours
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    Product Description

    USAutomatic Sentry 300 Automatic Gate Opener

    USAutomatic Sentry 300 Features: 

    • It’s the first gate opener designed with a plug-n-go universal wiring harness.
    • Made in USA
    • 10 Year Warranty
    • From top to bottom the sentry has the best of everything.
    • The Sentry solar friendly accessories allow you to add one of each without killing the battery.
    • The Sentry is a DIY gate opener and includes all mounting brackets needed to install in on round posts or square post are included.
    • Install time is under a hour.
    • (Two) 2-button remotes included
    • USAutomatic Sentry 300 With Solar Panel - qualifies for the tax credit up to 30% off and it covers the gate opener and labor cost.
    • Ornamental Iron – 12 feet, 400lb max
    • Ranch Gates – 14 feet, 400lb max
    • Chain Link Fences – 16 feet, 350lb max
    • Farm Gates – 20 feet, 300lb max


    The Sentry gate opener is designed and supplied with universal mounting brackets to fit most types of gate installations. Hinge post from 2 3/8" to 6" round or square can be used with the included universal mounting hardware.

    ornamental iron gate

    Ornamental Iron
    12 feet max length
    Max weight 400 lbs.

    ranch style gate

    Ranch Gate
    14 feet max length
    Max weight 400 lbs.

    farm gate

    Farm Gate
    20 feet max length
    Max weight 300 lbs.

    chain link fence gate

    Chain Link Gate
    16 feet max length
    Max weight 350 lbs.


    Will the Sentry 300 work on my gates?
    Yes, the Sentry 300 was designed to work on all types of gates that swing freely. The Sentry 300 effectively supports Ornamental Iron and Vinyl Gates up to 12 ft and 450 lbs, Chain Link Gates up to 14 ft and 300 lbs and Farm and Ranch Gates up to 20 ft and 250 lbs.

    Can I really install the Sentry 300 Gate Opener myself?
    YES, the Sentry gate operator installation manual and DVD are packed with color photos and all the details needed. The universal mounting brackets allow installation without welding and the Plug N Go wiring harness eliminates all complicated wiring.


    Can I install the Sentry 300 automatic gate opener on my dual swing gates? 

    YES - the Sentry 300 S is designed to operate a single swing gate and by adding the Sentry 300 D kit to the system it is transformed into a dual gate opener.

    Is everything I need to install the Sentry 300 included in the package?

    YES - everything needed to install the Sentry 300 S including mounting hardware, AC charger, wiring harness, actuator and detailed instructions is included in the Sentry 300 package.

    I would like to charge my battery with solar power, is it reliable?

    YES - the Sentry 300 automatic gate opener is the first reliable solar gate opener on the market.The gate system was designed to operate on a single 5-watt solar panel. See the Solar Region map for approximate number of cycles for the region in which you live


    How many seconds does it take to open or close a gate?
    The Sentry 300 automatic gate opener cycle time is about 16 seconds on a 90 degree opening. Compared to other products it is about 20% faster. 

    Where can I go to get additional information or help?

    Additional help is available by calling the Sentry help center staffed by USAutomatic employees at 1-866-711-0001.

    Do I need electricity 120 VAC at the gate location?
    NO - the Sentry gate openers or powered by a 12 V DC battery (not included), which can be charged with the optional solar panel kit allowing for installation any place your gate is located without needing electricity at the gate.

    Will I need to buy additional solar panels? 
    The answer is very dependent on the region of the country in which you live. Typically no additional panels will be needed for most installations. The Sentry Solar Panel kit will provide up to 50 cycles a day depending on the region in which you live. USAutomatic Sentry 300 Solar Gate Opener qualifies for Federal Tax Credit.

    What type of accessories can I add to my Sentry 300 automatic gate opener?
    The Sentry Gate Opener is designed to work with all Sentry accessories such as photo eyes for safety, exit sensors, keypads, wireless push to operate buttons, 7-day timers and solenoid locks. Any accessory added to system must be Solar friendly to help prevent premature battery failure. Solar friendly accessories are designed to operate on the minimal amount of energy

    Warranty Registration - Click Here

    Note: A poorly installed or misadjusted gate could be damaged. It is the responsibility of the installer to verify proper gate installation prior to opener installation.As a general rule a gate which is to be automatically operated must be stronger and smoother than one which will be manually operated.  Since the gate is a major component of the system, great care and concern must be given to the gate design.  

    Warranty Information

    10-Year Limited Warranty

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