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Sentry Plus ADS-B Receiver
Sentry Plus includes all the essential features that made its predecessor the best-selling weather receiver in aviation, plus powerful upgrades to create the ultimate iPad accessory. It’s everything you need for safer and more enjoyable flights.
With built-in screen and flight data recorder
A first of its kind OLED display. An unmatched 18-hour battery life. A next generation flight data recorder with G-meter. Sentry Plus includes all the essential features that made its predecessor the best-selling weather receiver in aviation, plus powerful upgrades to create the ultimate iPad accessory. It’s everything you need for safer and more enjoyable flights.
Integrated OLED screen shows key information at a glance
Incredible battery life - up to 18 hours on a single charge
Next generation flight data recorder with automatic track downloads
Built-in G meter displays real time status and records min/max
Improved carbon monoxide sensor with visual and audio alerts
Auto power on/off when connected to external power
Works with smart charging plugs and power delivery charges
Smart network joining for airplanes with on-board WiFi
Essential Pilot Tools
Sentry Plus receives all the weather products transmitted by the FAA, including newer options like icing forecasts and cloud tops—and there is no monthly subscription for weather. As long as you’re in range of a ground station (usually by 500-1000 feet AGL), everything is regularly refreshed. ForeFlight makes it easy to overlay multiple weather graphics on your route of flight, so you can make informed decisions and stay safe.
Sentry Plus also includes a multi-constellation GPS receiver that is incredibly accurate and reliable. In addition to 1 meter accuracy, the built-in receiver will switch to the European Galileo satellite constellation if the US’s GPS system is jammed or unavailable for any reason. It’s a powerful bit of redundancy, and it’s all automatic.
AHRS for backup attitude
The built-in AHRS drives a real-time pitch and bank display in ForeFlight. If you subscribe to Synthetic Vision, you can even see a 3D view of the world, complete with airports, terrain, obstacles, and traffic. This is not intended for primary reference, but it’s a great backup, and it is also recorded for ForeFlight track log replay.
Sentry Plus has a built-in G-meter, as you’d find in an aerobatic airplane. This can be viewed as a data field at the bottom of the Maps page for a real-time look, or it can be displayed as a historical trend in Track Logs. It’s also an option for the screen on Sentry Plus.
Flight data recorder and replay
Sentry Plus continuously records when it is powered on, storing GPS position, altitude, G-load, and AHRS-derived attitude. Flights are automatically organized based on power-on time and groundspeed, and it can store up to 16 flights internally. Best of all, track logs can be automatically imported into ForeFlight for fast and easy post-flight debriefing.
ADS-B and FLARM traffic
Sentry Plus has a dual band ADS-B receiver, so you’ll see traffic both directly from other aircraft equipped with ADS-B Out (air-to-air transmission) and from ground stations (TIS-B traffic broadcasts). Sentry Plus adds another traffic feature for European pilots: a dedicated FLARM receiver. FLARM is a short-range collision avoidance technology, particularly popular in Europe and among glider pilots, that uses small, transponder-like devices to transmit aircraft position. Requires additional license from ForeFlight; optimized for European frequencies.
For pilots flying aircraft with on-board WiFi systems, the new Smart WiFi option allows Sentry Plus to join your existing network (eg, GoGo), so you can get in-flight weather and traffic but still enjoy the benefits of your cabin WiFi. You can even select an option that will remember your aircraft’s wireless network and join automatically in the future.
Pressure altitude sensor
With its built-in barometric pressure sensor, Sentry Plus allows ForeFlight to display both pressure altitude and GPS altitude. Plus, ForeFlight’s automatic Cabin Pressure Advisor alerts you when you might need oxygen by flashing a message anytime cabin altitude exceeds 12,000 or 25,000 ft - perfect for turbocharged or pressurized airplanes.
Unmatched battery life
With up to 18 hours of use on a single charge, Sentry Plus is the undisputed leader in battery life—it will last for an entire weekend of flying and still have a reserve. It can also be recharged by smart-charging plugs, including Power Delivery, and a new auto power on/off option is a great option for pilots who want to build a Sentry Plus into an experimental airplane panel or mount it out of arm’s reach.
Carbon Monoxide Detector
Carbon monoxide is a hot topic in aviation, especially since the National Transportation Safety Board (NTSB) published a recommendation that all general aviation pilots fly with some type of CO detector. It’s not required, but it’s definitely a wise investment, especially if you fly a piston airplane where the cabin heat comes from a shroud around the exhaust stack. One small leak in the exhaust can cause deadly CO poisoning.
Among its long list of features, Sentry Plus includes a CO detector so it can fill that role quite easily. Since it’s integrated into a device most pilots use on every flight, there’s no extra battery to charge or screen to monitor; you’re more likely to use it and notice it. In fact, ForeFlight makes it hard to ignore a high CO alert. In addition to a visual alert both on the device and in the app, Sentry Plus will emit a loud audio alert. We had no trouble hearing this over the drone of a Lycoming.
Sentry Plus has a more sensitive CO sensor than its predecessor, so it will detect potential leaks earlier. However ForeFlight still uses smart algorithms to reduce nuisance alerts: you’ll get a yellow alert when CO is elevated, and a red warning if it continues to rise. In general, if you hear an alert you should shut off all cabin heat and consider landing at a nearby airport. Talk to a mechanic before you fly again.
The CO sensor in Sentry Plus lasts 10 years, so there’s no need for annual recalibration. It requires no additional ForeFlight subscription level either. In fact, since it’s totally self-contained on the device itself, it can work without the app at all.
The Sentry Family
The easiest and most affordable way to fly with subscription-free weather, Sentry Mini weighs less than 2 ounces but still delivers all the essential features for cross country flying.
Sentry is a compact, affordable ADS-B receiver specifically made for ForeFlight. In addition to popular features like ADS-B weather and traffic, Sentry also includes a carbon monoxide detector to warn of dangerous conditions in the cockpit.
A first of its kind OLED display. An unmatched 18-hour battery life. A next generation flight data recorder with G-meter. Sentry Plus is loaded with features everything else that made its predecessor the best-selling weather receiver in aviation.
In the Box:
- Sentry Plus
- Charging cable (no plug)
- Suction cup mount
- Rugged carrying case
- Quick start guide
- Download the User Guide Here