---
product_id: 4006832
title: "USAutomatic 020320 Sentry 300 Commercial Grade Automatic Gate Opener"
brand: "us automatic"
price: "€ 1886.57"
currency: EUR
in_stock: true
reviews_count: 2
category: "Us Automatic"
url: https://www.desertcart.ie/products/4006832-usautomatic-020320-sentry-300-commercial-grade-automatic-gate-opener
store_origin: IE
region: Ireland
---

# 12V battery powers weeks without sun Consistent 16-second open/close time 30% tax credit with solar charging USAutomatic 020320 Sentry 300 Commercial Grade Automatic Gate Opener

**Brand:** us automatic
**Price:** € 1886.57
**Availability:** ✅ In Stock

## Summary

> 🚪 Open the gate to smarter security and solar savings!

## Quick Answers

- **What is this?** USAutomatic 020320 Sentry 300 Commercial Grade Automatic Gate Opener by us automatic
- **How much does it cost?** € 1886.57 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/4006832-usautomatic-020320-sentry-300-commercial-grade-automatic-gate-opener)

## 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

- • **Solar-Powered Savings:** Qualifies for a 30% federal tax credit when paired with solar panel kit—eco-smart and wallet-friendly.
- • **Long-Range Remote Control:** Two included remotes operate your gate from up to 600 feet—even through trees and walls—perfect for seamless access.
- • **Commercial-Grade Durability:** 400 lbs thrust actuator with 1000 lbs compression rating built to handle gates up to 20 feet with rock-solid reliability.
- • **Effortless DIY Installation:** Plug-N-Go wiring harness and universal mounting brackets get your gate automated in under an hour—no electrician needed.
- • **Made in the USA with Warranty:** Backed by a 3-year limited warranty and crafted domestically for quality and peace of mind.

## Overview

The USAutomatic Sentry 300 is a commercial-grade automatic gate opener designed for gates up to 20 feet. It features a 12V battery with dual charging options including solar, qualifying for a 30% federal tax credit. Installation is fast and simple with a Plug-N-Go harness and universal brackets. The system includes two long-range remotes, a powerful linear actuator delivering 400 lbs of thrust, and is backed by a 3-year limited warranty. Made in the USA, it offers reliable, energy-efficient gate automation for residential or commercial use.

## Description

The Sentry 300 automatic gate opener is the first high quality, commercial grade, Do-it-Yourself gate opener. The Sentry 300 is made in the USA and powered by a 12 vdc battery with two charging options. The battery can be charged by the included AC transformer or USAutomatic's recommended solar panel kit. The solar panel option allows for remote installations and qualifies for a 30% federal tax credit. The Sentry 300's energy efficient design makes it the first, truly solar charged gate opener that can provide weeks of operation with no sun. The Sentry Plug-N-Go wiring harness eliminates the need for wiring and makes installation fast and simple, typically under 1 hour. Universal mounting brackets that allow for push-to-open or pull-to-open installation easily bolt onto most existing gates. The linear actuator provides 400 lbs of thrust and has a compression rating of 1000 lbs. Open or close time is usually 16 seconds and will not vary dramatically with gate weight. The Sentry 300 S is designed for installation on farm gates up to 20 feet in length, ornamental iron gates up to 12 feet in length and chain link gates up to 14 feet in length. A full line of solar friendly accessories are available to allow you to customize your automated gate system to your needs. The Sentry 300 S is covered by a 3 year limited warranty that repairs or replaces defective products. System includes all mounting hardware, two dual button transmitters, battery charger, AC transformer for battery charging, installation DVD, full color installation/owners manual, control box with pre-installed components, and linear actuator. Recommended battery is a Sealed lead acid, group U1 battery not included in kit.

Review: USAutomatic Sentry 300 S Commercial Grade Automatic Gate Opener - I researched automatic gate operators quiet extensively. The only one I knew I did not want for sure was a GTO. (more on that later) I still could not decide. So I called a local dealer who sold and installed gate operators. He recommended USAutomatic . Why, "made in the US, better warranty, excellent support, commercial grade, low power usage, and a satisfied customer list". I trusted his professional opinion and bought the USAutomatic Sentry 300 S. After installing the operator and using it for a couple of weeks I am very satisfied. It works smooth, was easy to install, easy to setup, I get a 30% tax credit on the cost, and a decent warranty. I am very impressed with this Operator. My first gate operator was a GTO Mighty Mule 500. Mainly because it was the only brand and best model available in retail stores in my area. It was about $450.00 plus another battery $30.00 (because the power drain was so high) and another remote $30.00. Over $500.00. I got it installed and it sounded like it was going to strip a gear ever tine it was opened. To my amazement It lasted about 3yrs on a 200lb 14 foot residential gate that was used an average of 4 times a day. When it did strip a gear (the warranty was expired) I could not buy the gears. I could buy replacement arm for $275.00. Comparing a GTO Mighty Mule 500 Gate Opener to USAutomatic Sentry 300 S would be like comparing oak to mdf . You get what you pay for. I now have a mighty mule 500 gate operator for sale if anyone needs parts or a trot line weight. UPDATE:4/9/12 I have had this opener for about a year & a half now. The only problem I have had was when I tried to push snow with it in one of the rare snow storms we have in Texas. I had to unplug the battery and let it reset, and clear the snow from its path. It has not give me any more problems. I use the remote from the house (about 300 feet) it works every time in one location, but from the drive or another location in th house it is hit or miss. I think it might be an interference or frequency problem. Overall I still give it five stars.
Review: Works great, easy to install - I was a little apprehensive about taking this DIY project on, especially since the existing gates were badly installed and I really did not want to have to rip out the gate posts and install new ones. However, I was able to replace the two 5' chain link gates with a single 10' meshed farm gate and shimmed it so that the gate itself was completely level (the post was a bit off kilter). Yes, it would have been better to set a new gate post, but I figured that was going to be a huge amount of effort (the old gate post was set at the end of a concrete kneewall. Installation of the gate opener went without a hitch (I did view the CD and read the installation instructions twice before proceeding). The manual was good and in less than 2hrs it was all up and running. Adjustment was easy. The gate opens very consistently (within an inch) and the remotes have a long range (I can click the opener at the start of the driveway which is some 250' from the inner driveway gate. It has been operating flawlessly for a week and given the quality of construction I expect it should run for some time. I did get a silicon sealant to ensure the control panel was well sealed (I have had issues before with ants getting into control units like that). I am glad I opted for a neighbor's advice to avoid an inexpensive unit and thereby avoid the problems he had (he gave up trying to install it and finally paid a gate company to fix it). Assuming it continues to operate well into the future, I will rate this as a very fine purchase. UPDATE: the range of the remote is quite surprising: I can consistently open and close the gate from the corner of my property which lies over 600' away from the Control box on the gate. And this is not direct line of sight either - at least 200' of the property is covered with oak trees and small shrubs! I especially like the fact that I can sit at my desk inside the house, some 150' from the control box (again going through trees and three walls of the house) and still reliably open and close the gate (which is useful since this is an inside gate, and I have a driveway sensor at the outer entrance which gives me plenty of time to see who is coming and open the gate for them). The driveway gate itself continues to operate flawlessly without a single hiccough - in fact I purchased another remote and also got the wireless keypad and plan to tie in a remote relay so that I can open and close the gate over the internet. 2nd update: has worked flawlessly now for 4+ years. 3rd update: worked flawlessly for 5+ years now. When AC power failed during recent ICEmageddon, the gate was one of the few things that continued to work on battery power. 4th update: 8 years, still working flawlessly, did have to clean corrosion on battery terminals, but original battery still seems ok (probably need to replace it soon though). 5th update, 10+ years: Removed Wasps nest in controller😳 and installed a new battery and now working as well as ever 🙂.

## Features

- Qualifies for 30% tax credit if solar charged
- Operates gates up to 20 feet in length
- 3 Year Limited Warranty
- 2 remote transmitters included

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002YBG2U0 |
| Batteries Included? | No |
| Batteries Required? | Yes |
| Best Sellers Rank | #502,618 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #438 in Gate Openers |
| Customer Reviews | 4.3 4.3 out of 5 stars (168) |
| Date First Available | April 29, 2011 |
| Global Trade Identification Number | 00891655002002 |
| Installation Type | Screw-In |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 34 pounds |
| Item model number | 020320 |
| Manufacturer | USAutomatic |
| Part Number | 020320 |
| Product Dimensions | 29.13 x 9.63 x 24.13 inches |
| Recommended Uses For Product | residential or commercial gate automation |
| Size | Medium |
| Style | Single Gate |
| UPC | 891655002002 |
| Warranty Description | 3 Year Warranty Warranty. First 3 years cover defects in material and workmanship product will be replaced or repaired. |

## Product Details

- **Brand:** US Automatic
- **Color:** Black/Gray
- **Exterior Finish:** Black
- **Item Weight:** 34 Pounds
- **Material:** Alloy Steel, Metal

## Images

![USAutomatic 020320 Sentry 300 Commercial Grade Automatic Gate Opener - Image 1](https://m.media-amazon.com/images/I/619IS14TBrL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ USAutomatic Sentry 300 S Commercial Grade Automatic Gate Opener
*by V***7 on October 19, 2010*

I researched automatic gate operators quiet extensively. The only one I knew I did not want for sure was a GTO. (more on that later) I still could not decide. So I called a local dealer who sold and installed gate operators. He recommended USAutomatic . Why, "made in the US, better warranty, excellent support, commercial grade, low power usage, and a satisfied customer list". I trusted his professional opinion and bought the USAutomatic Sentry 300 S. After installing the operator and using it for a couple of weeks I am very satisfied. It works smooth, was easy to install, easy to setup, I get a 30% tax credit on the cost, and a decent warranty. I am very impressed with this Operator. My first gate operator was a GTO Mighty Mule 500. Mainly because it was the only brand and best model available in retail stores in my area. It was about $450.00 plus another battery $30.00 (because the power drain was so high) and another remote $30.00. Over $500.00. I got it installed and it sounded like it was going to strip a gear ever tine it was opened. To my amazement It lasted about 3yrs on a 200lb 14 foot residential gate that was used an average of 4 times a day. When it did strip a gear (the warranty was expired) I could not buy the gears. I could buy replacement arm for $275.00. Comparing a GTO Mighty Mule 500 Gate Opener to USAutomatic Sentry 300 S would be like comparing oak to mdf . You get what you pay for. I now have a mighty mule 500 gate operator for sale if anyone needs parts or a trot line weight. UPDATE:4/9/12 I have had this opener for about a year & a half now. The only problem I have had was when I tried to push snow with it in one of the rare snow storms we have in Texas. I had to unplug the battery and let it reset, and clear the snow from its path. It has not give me any more problems. I use the remote from the house (about 300 feet) it works every time in one location, but from the drive or another location in th house it is hit or miss. I think it might be an interference or frequency problem. Overall I still give it five stars.

### ⭐⭐⭐⭐⭐ Works great, easy to install
*by C***R on May 10, 2016*

I was a little apprehensive about taking this DIY project on, especially since the existing gates were badly installed and I really did not want to have to rip out the gate posts and install new ones. However, I was able to replace the two 5' chain link gates with a single 10' meshed farm gate and shimmed it so that the gate itself was completely level (the post was a bit off kilter). Yes, it would have been better to set a new gate post, but I figured that was going to be a huge amount of effort (the old gate post was set at the end of a concrete kneewall. Installation of the gate opener went without a hitch (I did view the CD and read the installation instructions twice before proceeding). The manual was good and in less than 2hrs it was all up and running. Adjustment was easy. The gate opens very consistently (within an inch) and the remotes have a long range (I can click the opener at the start of the driveway which is some 250' from the inner driveway gate. It has been operating flawlessly for a week and given the quality of construction I expect it should run for some time. I did get a silicon sealant to ensure the control panel was well sealed (I have had issues before with ants getting into control units like that). I am glad I opted for a neighbor's advice to avoid an inexpensive unit and thereby avoid the problems he had (he gave up trying to install it and finally paid a gate company to fix it). Assuming it continues to operate well into the future, I will rate this as a very fine purchase. UPDATE: the range of the remote is quite surprising: I can consistently open and close the gate from the corner of my property which lies over 600' away from the Control box on the gate. And this is not direct line of sight either - at least 200' of the property is covered with oak trees and small shrubs! I especially like the fact that I can sit at my desk inside the house, some 150' from the control box (again going through trees and three walls of the house) and still reliably open and close the gate (which is useful since this is an inside gate, and I have a driveway sensor at the outer entrance which gives me plenty of time to see who is coming and open the gate for them). The driveway gate itself continues to operate flawlessly without a single hiccough - in fact I purchased another remote and also got the wireless keypad and plan to tie in a remote relay so that I can open and close the gate over the internet. 2nd update: has worked flawlessly now for 4+ years. 3rd update: worked flawlessly for 5+ years now. When AC power failed during recent ICEmageddon, the gate was one of the few things that continued to work on battery power. 4th update: 8 years, still working flawlessly, did have to clean corrosion on battery terminals, but original battery still seems ok (probably need to replace it soon though). 5th update, 10+ years: Removed Wasps nest in controller😳 and installed a new battery and now working as well as ever 🙂.

## Frequently Bought Together

- USAutomatic 020320 Sentry 300 Commercial Grade Automatic Gate Opener
- USAutomatic 520015 Solar Panel Kit with 5 Watt Panel for Sentry Gate Openers
- USAutomatic 050520 Wireless Keypad for Sentry Gate Openers, Silver

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.ie/products/4006832-usautomatic-020320-sentry-300-commercial-grade-automatic-gate-opener](https://www.desertcart.ie/products/4006832-usautomatic-020320-sentry-300-commercial-grade-automatic-gate-opener)

---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-04-23*