---
product_id: 6613044
title: "USAutomatic Sentry 300D Commercial Grade Automatic Gate Opener for Dual Solar Swing Gates"
brand: "us automatic"
price: "S$3546"
currency: SGD
in_stock: true
reviews_count: 8
url: https://www.desertcart.sg/products/6613044-usautomatic-sentry-300d-commercial-grade-automatic-gate-opener-for-dual
store_origin: SG
region: Singapore
---

# Includes all mounting hardware Solar-powered efficiency Made in the USA USAutomatic Sentry 300D Commercial Grade Automatic Gate Opener for Dual Solar Swing Gates

**Brand:** us automatic
**Price:** S$3546
**Availability:** ✅ In Stock

## Summary

> 🚪 Unlock the Future of Gate Automation!

## Quick Answers

- **What is this?** USAutomatic Sentry 300D Commercial Grade Automatic Gate Opener for Dual Solar Swing Gates by us automatic
- **How much does it cost?** S$3546 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/6613044-usautomatic-sentry-300d-commercial-grade-automatic-gate-opener-for-dual)

## Best For

- us automatic enthusiasts

## Why This Product

- Trusted us automatic brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unmatched Durability:** Engineered for commercial-grade performance, ensuring longevity and reliability.
- • **Dual Gate Compatibility:** Perfectly designed for dual swing gates, enhancing your property's accessibility.
- • **Weather-Resistant Design:** Features a water-tight junction box and wire nuts to withstand the elements.
- • **Complete Installation Kit:** Comes with a 50' cable and all necessary mounting hardware for a hassle-free setup.
- • **Solar-Powered Convenience:** Harness the power of the sun for eco-friendly operation, reducing energy costs.

## Overview

The USAutomatic Sentry 300D is a commercial-grade automatic gate opener designed for dual solar swing gates. Made in the USA, it includes a 50' cable, all necessary mounting hardware, and a weather-resistant junction box, ensuring a reliable and efficient solution for your property access needs.

## Description

Product Description          The Sentry 300D Dual gate actuator kit is required to operate the second gate if your entry has dual gates across the driveway. A Sentry 300S is still required for the first gate. The Sentry 300D is designed to be used with the Sentry 300S gate opener and installed on farm gates up to 20 feet in length, ornamental iron gates up to 12 feet in length and chain link up to 14 feet in length. Made in the USA and covered by a 3 year limited warranty that repairs or replaces defective product and an additional 7 year extended limited warranty that has minimal charges for the affected component. The 300D kit contains linear actuator, mounting hardware, 50 cable, water tight junction box and wire nuts for connections. 3 Year Warranty. First 3 years cover defects in material and workmanship. Product will be replaced or repaired.             From the Manufacturer          The Sentry 300D dual gate actuator kit is required to operate the second gate if your entry has dual gates across the driveway. A Sentry 300S is still required for the first gate. The Sentry 300D is designed to be used with the Sentry 300S gate opener and installed on farm gates up to 20 feet in length, ornamental iron gates up to 12 feet in length and chain link up to 14 feet in length. Made in the USA and covered by a 3 year limited warranty that repairs or replaces defective product and an additional 7 year extended limited warranty that has minimal charges for the affected component.  What's in the box :   The 300D kit contains linear actuator, mounting hardware, 50' cable, water tight junction box and wire nuts for connections.

## Features

- Made in the USA
- Commercial grade swing gate opener
- Includes 50' cable
- Includes all mounting hardware
- Includes water tight junction box and wire nuts

## Images

![USAutomatic Sentry 300D Commercial Grade Automatic Gate Opener for Dual Solar Swing Gates - Image 1](https://m.media-amazon.com/images/I/51rOhTruioL.jpg)
![USAutomatic Sentry 300D Commercial Grade Automatic Gate Opener for Dual Solar Swing Gates - Image 2](https://m.media-amazon.com/images/I/81UWIVE-T3L.jpg)
![USAutomatic Sentry 300D Commercial Grade Automatic Gate Opener for Dual Solar Swing Gates - Image 3](https://m.media-amazon.com/images/I/61r1Z0Bm0ZL.jpg)
![USAutomatic Sentry 300D Commercial Grade Automatic Gate Opener for Dual Solar Swing Gates - Image 4](https://m.media-amazon.com/images/I/71XqobYx9KL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ 







  
  
    The instructions are clear and I'm a handy person but ...
  

*by I***Z on Reviewed in the United States 🇺🇸 on September 18, 2015*

The instructions are clear and I'm a handy person but I decided to have these item (along with solar and a second set) professionally installed because it required a wire going across due to double gates and I wanted it done clean. It took them the whole day to put it up because they were not familiar with the product. But so far it has been a god send from getting in and out of the car to open the gate. No adjustment needed so far and is working flawlessly.

### ⭐⭐ 







  
  
    Gate Bracket broke within
  

*by M***C on Reviewed in the United States 🇺🇸 on May 27, 2015*

Gate bracket broke within 30 days after installing.  Simple installation but you are unable to expand to wired keypad or other accessories.  High cost compared to Mighty Mule etc and not much better.  The extra expense is not worth it.

### ⭐⭐⭐⭐⭐ 







  
  
    Worth the extra cost over the imported openers
  

*by D***O on Reviewed in the United States 🇺🇸 on August 11, 2013*

I worked 10yr as a garage door installer. Installing door and gate openers frequently. I have installed 4 of the imported gate opener systems for friends etc. This was the second install of this brand. This time for a dual gate system and by my recommendation. This brand is nearly double the cost of the imports. It's worth 4x literally. The housings are sealed, all metal, pre-wired. The control box is simple to adjust and understand, gate limits are adjusted inside the control box. This is important because the magnetic limits on the others can fool the opener into running the wrong direction. If a gust hits the gate while the motor is running assisting it. It can run a bit too far. If it goes just far enough that the limit reopens when you actuate the gate again it try's to keep running the same direction jamming the motor. A condition not easily diagnosed by a homeowner. Rain seaps into them. These US made openers are strong, leak free (so far). With the limits adjust by pots inside the control box they run the proper direction every time. The entire install is cleaner and easier. They are much more dependable. They have a 10yr warrenty. I told my friend I would not help him if he didn't spend the extra money for this system. He finally agreed. I knew how mad he would be if it was not trouble free. You put in a gate opener for convience. If you haved to fool with them to keep them working it's kinda self defeating. I haven't use te solar option yet but since these run on 12v not 24v I'm sure it would work. I did have to wire the cord to the far gate leaf. I soldered and heat shrink wraped the connections. I cut the wire from the motor at about 8" so the soldered connection would never hit the ground. Even though it was well sealed. The control box end I cut the wires at 6" from  the plug then used single closed end crimps the make the connections. This kept the joints inside the control box. I also used some rtv sealant on the control box mounts. Most of the problems I fixed over 10yrs from all brands were all moisture related. All the plugs were treated with silicone grease to stop any corrosion. Do a little extra on the install and you won't have to do it twice.

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-23*