ForeFlight Sentry ADS-B Receiver

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$499.00

ADS-B receiver with CO detector

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. No larger than a deck of cards, Sentry packs long list of features into a small size, but still offers 12 hours of battery life.

Features:

  • Subscription-free weather in flight
  • Dual band ADS-B t...
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ADS-B receiver with CO detector

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. No larger than a deck of cards, Sentry packs long list of features into a small size, but still offers 12 hours of battery life.

Features:

  • Subscription-free weather in flight
  • Dual band ADS-B traffic
  • Built-in GPS
  • Backup attitude information (AHRS)
  • Carbon monoxide alarm
  • Pressure altitude sensor
  • Weather replay
  • 12-hour battery
  • Connect to ForeFlight via WiFi (5 devices)

Integrated Weather Replay

With onboard memory supporting up to 30 minutes of FIS-B data, Sentry saves animated radar and other weather so data is available as soon as you connect. Turn off your iPad screen and save battery when not in use.

Carbon Monoxide Detector

A first for portable ADS-B receivers, Sentry provides a built-in carbon monoxide sensor and alerting system, with an audio and in-app alert when CO concentration reaches hazardous levels. The LED indicator also provides a visual indication of CO levels.

Synthetic Vision

ForeFlight Synthetic Vision provides a backup glass cockpit on your iPad that can help you stay aware of your position and surroundings in normal and emergency operations. Combined with Sentry, Synthetic Vision provides super responsive pitch and bank in addition to terrain and obstacle depictions. Simple calibration supports mounting Sentry on the left window, dash, or right window.

12 Hour Battery Life

Sentry’s efficient power usage allows 12 hours of continuous operation on a single charge, providing non-stop situational awareness for the long haul. Recharges using included USB-C cable.

Fast & Reliable Mounting with Quick Release

Sentry’s quick release mechanism means you can attach and remove it in under a second. The popular RAM® suction cup mount ensures a long-lasting seal and high heat tolerance so you can leave it in the plane between flights.

Compact Form Factor

If you’ve got room for a deck of cards in your aircraft, you’ve got room for Sentry. Large enough to not get lost under the seat, yet small enough that it doesn’t block your view, and the internal battery makes charging simple and straightforward. Measures 2.25”w x 3.25”l x 1.25”d.

Easy Firmware Updates Through ForeFlight

Updating Sentry’s firmware is a non-issue thanks to fast over-the-air updates through ForeFlight. When an update is available, ForeFlight provides one-tap installation that finishes in seconds.

In the box:

  • Sentry
  • Charging cable (no plug)
  • Suction cup mount
  • Rugged carrying case
  • Quick start guide
 
Note: Requires ForeFlight version 10.2 or higher.
 

Buy Now, Pay Later

An ADS-B receiver is a major investment, and now there's an easy way to make paying for it a little more convenient. For a limited time, PayPal Credit is offering no payments and no interest if paid in full in 6 months on purchases of $99 or more. Just choose the PayPal option at checkout. Learn More

John Zimmerman

Vice President, Catalog Division—Sporty’s Pilot Shop

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Reviews

Customer Reviews

4.7 / 5.0
52 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
42
6
2
1
1
Durability
4.7 / 5
Reliability
4.6 / 5
Performance
4.7 / 5
Ease Of Use
4.8 / 5
Value
4.6 / 5
Would You Recommend?
Yes (39)
No (3)
Durability
5 / 5
Reliability
5 / 5
Performance
5 / 5
Ease Of Use
5 / 5
Value
5 / 5
Would You Recommend?
Yes
Great performance for value
I have had this for two months, and flown IFR in the Houston Class B, DFW Class B, Tulsa and some remote areas in Texas, Louisiana and Arkansas. It has performed well and accurately paired with my IPAD Mini in my Bonanza. I actually saw potential traffic alerts including military before ATC notified me. I do have ADS-B out installed on the Bonanza.
April 12, 2019
Would You Recommend?
Yes
Does everything as advertised. Works great with my iPad mini 4.
April 11, 2019
Purchased
2 weeks ago
Performance
5 / 5
Ease Of Use
5 / 5
Value
4 / 5
Would You Recommend?
Yes
Expensive but worth it.
Just got it and only an hour and a half of actual use. Therefore, I can't give a value for durability or reliability. Give me a year.

The unit is dead simple to turn on and use with my iPad Mini 4. The motion sensors it uses for a reference platform work so well, they don't seem to drift at all.
April 8, 2019
Purchased
3 weeks ago
Durability
5 / 5
Reliability
5 / 5
Performance
5 / 5
Ease Of Use
5 / 5
Value
5 / 5
Would You Recommend?
Yes
Perfect companion for my iPad mini
Works like a champ. Love the weather, the traffic and the backup AHRS. The CO2 monitor is a great bonus and nice piece of mind. Have used it pilot-side window and on top of the glare screen. Convenience and reliable.
April 8, 2019
Purchased
4 weeks ago
Durability
5 / 5
Reliability
5 / 5
Performance
5 / 5
Ease Of Use
5 / 5
Value
5 / 5
Would You Recommend?
Yes
Nice to have a backup AHRS with GPS makes flying even safer!
April 1, 2019
Purchased
4 weeks ago
Durability
5 / 5
Reliability
5 / 5
Performance
5 / 5
Ease Of Use
5 / 5
Value
5 / 5
Easy to mount.
Not yet flown, but gps and co monitor work on the ground...
March 11, 2019
Purchased
1 month ago
Durability
5 / 5
Reliability
5 / 5
Performance
5 / 5
Ease Of Use
5 / 5
Value
5 / 5
Would You Recommend?
Yes
Absolutely Worth It
I have a few friends who recommended the Sentry over the Stratus as a Flight Instructor, and they were right! It's been absolutely worth the reliability and the comfort of knowing what's around you. Everyone, from a Private Pilot up to the Pro's, will appreciate the increase in situation awareness the Sentry brings. I'd absolutely buy it again.
March 7, 2019
Purchased
1 month ago
Durability
5 / 5
Reliability
5 / 5
Performance
5 / 5
Ease Of Use
5 / 5
Value
5 / 5
Would You Recommend?
Yes
I Love This Thing!
The Sentry is a great ADS-B receiver!
After the first charge, it is ready to fly.
It seamlessly connected via WiFi to my iPad and my IOS phone.
It is clear to me that they designed the Sentry for ForeFlight.
I first watched the traffic at my local airport from my kitchen window!
The window mount is well built and I am sure it can't be knocked off.
The built in CO2 detector saved me the cost of installing a stand alone detector in my plane. Not to mention I have never rented a plane that had a CO2 detector installed in it.
You can see YouTube videos on the simplicity of operation.
March 6, 2019
Purchased
1 month ago
Durability
3 / 5
Reliability
1 / 5
Performance
1 / 5
Ease Of Use
3 / 5
Value
1 / 5
Would You Recommend?
No
Really sorry to say, but my Sentry unreliable and not fit for use.
I bought this unit to provide SA in my instrument flying. Tried it on a number of flights and it constantly disconnects. The only way to solve is to reach over and turn it on and off...whilst in flight! Had the same experience on 3 consecutive flights.

Reported to FF - very helpful and responsive (who suggested a beta firmware upgrade...which I tried but did not help)

March 6, 2019
Durability
5 / 5
Reliability
5 / 5
Performance
5 / 5
Ease Of Use
5 / 5
Value
5 / 5
Would You Recommend?
Yes
I’m a student pilot and looking for ways to add and simplify all cockpit operations. With a push of a single button and your connected. Just amazing. Thank you Sentry
February 27, 2019
Purchased
2 months ago
Question and Answer
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 39 questions Browse 39 questions and 45 answers
What’s the difference between this device and stratus 3?
A shopper on Jul 26, 2018
BEST ANSWER: The Sentry has no external antenna connections, a longer battery life of 12 hours and a CO detector. The Stratus 3 has flight data recording, external antenna connections, and is capable of working with apps other than ForeFlight.
Does this support GLONASS or only GPS? Also what about the new GPS frequencies that are coming online L2 and L5?
A shopper on Jul 23, 2018
BEST ANSWER: Yes it does both GPS (WAAS) and GLONASS.
Other than the CO2 monitor, what is the primary difference between this and the scout which costs less than half of what this unit retails for?
Scott E on Jul 23, 2018
BEST ANSWER: Scout does not have a built in GPS, battery, or AHRS for backup attitude. It only does ADS-B.
After 5 hours charging the pwr light is blue not green. This normal?
Neil T on Aug 16, 2018
BEST ANSWER: My initial charge took longer than 10-15 minutes. But honestly I don't recall the total time. If you leave it on the charger the unit will shut the lights down when fully charged. Blue light while charging. Disconnect the power and turn the unit on it will display level of charge via light colors.
what is the benefit of the stratus 3 having an external antenna port and the Sentry not having one? What exactly does the external antenna do?
A shopper on Sep 12, 2018
BEST ANSWER: It just offers more options for mounting - you could mount the Stratus semi-permanently under the panel or in the back of the airplane, and use an external antenna to maintain good reception. The other benefit would be in areas of marginal ADS-B coverage, where that antenna improves reception. However, most of the time it's not a big issue.
Is the weather resolution the same as an XM weather unit?
A shopper on Aug 14, 2018
BEST ANSWER: For the most part it's the same, except that ADS-B radar only shows good resolution within about 150-250 miles of your airplane. SiriusXM weather is full resolution nationwide. So if you're comparing radar at long distance, the ADS-B will be noticeably blockier.
Does this only work with fore flight?
Evert O on Jul 23, 2018
BEST ANSWER: Yes, it only works with ForeFlight.
Can I Use this item in Japan?
A shopper on Aug 2, 2018
BEST ANSWER: Yes, the Sentry can be used world wide. The FIS-B functionality will only work in the US and UK but all other functionality will be supported world wide. You'll still have GPS, CO monitor, ADS-B Traffic reception, and AHRS regardless of location.
Does it have flight recording capability as with the Stratus?
A shopper on Jul 25, 2018
BEST ANSWER: It is possible but I have not heard of any mention of that either. Please watch our website.
Are there any altitude or line of sight limitations for using Sentry?
Charles on Mar 27, 2019
BEST ANSWER: No, there are no limitations.
Does Sentry require WiFi to operate.?
Rod B on Mar 6, 2019
BEST ANSWER: Sentry will create a WiFi signal to the iPad/iPhone. It does not provide internet access.
I use foreflight on my IPad Pro. What will my screen look like when I am receiving surrounding traffic ?
Leatherman L on Feb 25, 2019
BEST ANSWER: It will have a blue triangle that represents an aircraft.
What Bluetooth code should be used to pair with ipad?
A shopper on Feb 5, 2019
BEST ANSWER: Sentry does not connect to the iPad via Bluetooth. The Sentry use a wifi signal
Is the GPS WAAS or GLONASS?
Nina a on Jan 31, 2019
BEST ANSWER: It is a WAAS GPS and also GLONASS.
Is it overkill having this if you fly a G1000 equipped aircraft?
Don R on Jan 29, 2019
BEST ANSWER: Not at all, it will provide you with a backup.
Does it come with a mounting device like a suction cup?
Don R on Dec 31, 2018
BEST ANSWER: Yes, this included the suction cup.
Can the unit be mounted upside down? Foreflight appears to have three mounting settings for it, and the one that's not on a side window appears to be right-side-up on the glare shield. Suction cup upside down from the center of the windshield between the sun shades would be an ideal, out of the way location in my plane. But curious if Foreflight will accommodate this orientation.
Chris on Nov 29, 2018
BEST ANSWER: Yes, I connected my iPad to the sentry with the unit upside down. Make sure to mount the unit then turn it on so that the Sentry can calibrate.
I love the integrated CO monitor, but electronic CO monitors usually have a life of 5-7 years. Does this have an EOF for the CO monitor?
Paul P on Nov 21, 2018
BEST ANSWER: The manufacturer does not list an end of life for this unit.
Will it work on an Iphone instead of an iPad?
A shopper on Nov 10, 2018
BEST ANSWER: Yes, Foreflight will work on an iPhone and the Sentry will provide data.
Can I use this item in Slovenia ( Europa )?
Slavko K on Nov 8, 2018
BEST ANSWER: It would be used only as a GPS. You would not
Will the sentry pick up lightning and echo tops?
A shopper on Oct 3, 2018
BEST ANSWER: It will when products are broadcast over the ads-b system.
Do I need the foreflight synthetic vision for backup-attitude, or is (pure) attitude provided in the basic foreflight package?
bergfalke on Sep 24, 2018
BEST ANSWER: Yes, you should be able to use the AHRS without the Synthetic vision.
Do I need wifi plus cellular on my iPad for full functionality?
Mike P on Sep 14, 2018
BEST ANSWER: No, just the WiFi is required.
Can it be connected to Android devices?
Mike P on Sep 14, 2018
BEST ANSWER: No, the Sentry is an IOS exclusive product.
Does it work with other EFB's besides Foreflight?
A shopper on Sep 6, 2018
BEST ANSWER: No it does not.
Will this unit function normally in flight while charging? Such as forgetting to charge before a flight and don’t have time to charge prior to departure.
A shopper on Sep 4, 2018
BEST ANSWER: It will fully function and operate while being charged, just tested this out in flight recently.
Can I used with my iPad?
Baker on Aug 25, 2018
BEST ANSWER: Yes, it works with the iPad and ForeFlight.
Will the Stratus 3 or Sentry work with heated windows on corporate aircraft?
Russ S on Aug 22, 2018
ForeFlight Sentry ADS-B Receiver
ForeFlight Sentry ADS-B Receiver
Stratus 3 ADS-B Receiver
Stratus 3 ADS-B Receiver
BEST ANSWER: The heated windows present a problem for the reception with both units, although in most cases they will work. For particularly thick windsheilds (Learjets, for example) an external antenna may be required. The Stratus includes ports for an external GPS and ADS-B antenna, while Sentry does not. I would recommend the Stratus if you're concerned about it.
Does anyone know if this unit also receives and shows air traffic as part of its presentation?
Richard on Aug 16, 2018
BEST ANSWER: Yes it is a dual band (1090 and 978 MHz) receiver, so it will receive ADS-B traffic. Note that this can be limited unless your airplane has ADS-B Out. Details in this article: https://ipadpilotnews.com/2016/01/ads-b-traffic-101-2/
Hi. I am not sure if I understood it correctly. Is it portable datalink or does it only store the weather information downloaded on the ground? Than it would be useless... Maybe the stupid question from me. However, if it is a portable datalink, which downloads the weather information dirung the flight and than shares with your iPad, does it work also in Europe? How old can be the frames maximum? Ive heart that sometime datalink shares even 20 minutes old weather information which makes it pretty useless in changing weather. How is downloading of the data charged? Thank you for answers.
Martin K on Aug 15, 2018
BEST ANSWER: This receiver is an ADS-B receiver. The weather information is broadcast from ground stations here in the US. The weather received is between 5-7 minutes old. The data is not downloaded. When received by the receiver it is sent via a WiFi signal to the iPad to be displayed on Foreflight.
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