US Automatic Sentry 300
#5 in Single swingFull review
A commercial grade, UL 325 listed single gate opener with a long warranty for buyers who value proven parts support over capacity per dollar.
Amazon $1,395$1,395
The US Automatic Sentry 300 is the better automatic gate opener overall, rated 3.2 to 3.0. The US Automatic Sentry 300 leads on warranty and gate length. The JUJIANG C026 Solar Single wins on price and gate weight. The JUJIANG C026 Solar Single costs $1,025.01 less ($369.99 vs $1,395).
JUJIANG C026 Solar Single
#8 in Single swingFull review
A complete solar kit for a remote single farm or ranch gate on a budget. Its safety listing and duty rating are not published.
Amazon $369.99$369.99
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the US Automatic Sentry 300 for warranty (3-year warranty vs 1-year warranty) and gate length (gates up to 20 ft per leaf vs gates up to 16 ft per leaf).
- Choose the JUJIANG C026 Solar Single for price ($369.99 vs $1,395) and gate weight (gates up to 770 lb per leaf vs gates up to 400 lb per leaf).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every single swing automatic gate opener; a clear win is highlighted. How we rank explains each one.
| Factor weight | US Automatic Sentry 300 | JUJIANG C026 Solar Single |
|---|---|---|
| Overall rating | 3.2/5 | 3.0/5 |
| Gate weight 20% | 24 gates up to 400 lb per leaf | 78 gates up to 770 lb per leaf |
| Gate length 15% | 100 gates up to 20 ft per leaf | 60 gates up to 16 ft per leaf |
| Safety listing 15% | 100 UL 325 listed | 0 no UL 325 listing published, scored as none |
| Price 25% | 0 $1,395 | 69 $369.99 |
| Warranty 25% | 50 3-year warranty | 0 1-year warranty |
Specifications
| US Automatic Sentry 300 | JUJIANG C026 Solar Single | |
|---|---|---|
| Gate | ||
| Gate type | Single swing | Single swing |
| Heaviest gate | 400 lb | 770 lb |
| Longest gate | 20 ft | 16 ft |
| Time to open | 16 s | - |
| UL 325 listed | Yes | - |
| Power | ||
| Power | Battery, solar ready | Solar (panel included) |
| Solar panel | - | 20 W |
| Battery | - | 8 Ah |
| Motor voltage | 12 V | - |
| Build | ||
| Remotes included | 2 | 2 |
| Warranty | 3 years | 1 year |