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
1 US Automatic automatic gate opener ranked. Each one is scored and ranked against every brand in its gate type, so "#3 mid-size" means third of all mid-size gate openers here, not third among US Automatic's own.
The US Automatic Sentry 300 is US Automatic's only current automatic gate opener here, ranked #5 of 8 single swing and rated 3.2.
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.
US Automatic gate openers 1
- US Automatic Sentry 300#5 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$1,395400 lb20 ftYes