ForeFlight Sentry ADS-B Receiver

FREE shipping!

$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...
Read more

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

Have questions?

We can help!

Our expert pilots are available to answer your questions.

Ask our experts: iPad@sportys.com

Reviews

Customer Reviews

4.8 / 5.0
28 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
24
3
0
1
0
Durability
4.8 / 5
Reliability
5.0 / 5
Performance
4.9 / 5
Ease Of Use
4.9 / 5
Value
4.8 / 5
Would You Recommend?
Yes (21)
No (1)
Durability
5 / 5
Reliability
5 / 5
Performance
5 / 5
Ease Of Use
5 / 5
Value
5 / 5
Would You Recommend?
Yes
Best ADSB Receiver On The Market
The ForeFlight Sentry works flawlessly. Does everything exactly as advertised. Provides traffic, weather, built in CO detector and AHRS. Having used a Stratus 2s, I am very pleased with the Sentry. Both products (Sentry and Stratus) are high quality, but the the lower price and smaller form factor of the Sentry make it a clear choice. I highly recommend the Sentry to anyone looking for a high quality ADSB receiver.
November 13, 2018
Purchased
2 weeks ago
Durability
3 / 5
Reliability
5 / 5
Performance
5 / 5
Ease Of Use
5 / 5
Value
5 / 5
Would You Recommend?
Yes
Small cheap AHARS ADS-B and CO with 12 hour battery??? No brainer, take my money already!!!
Great little unit. I was looking for a backup ADS-B/AHARS unit for the G-345 and I hate those little plastic CO detectors, and this little unit fixes both issues with one small box! Great battery life too, but like the original Stratus2, I hate the color.
November 8, 2018
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
Stop questioning it, just spend the money.
Worth every penny, but the instructions included are useless. I put it off for months questioning whether I should spend the money or not well I wish now I would have bought months ago! Love foreflight and this just makes it even better!
November 8, 2018
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
Great Product
Purchased it just before I started my cross country flights. First used it on my night cross country of 150nm. Easy set up, knew right were I was at all times.
October 25, 2018
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 Great Device
I was looking for a device that would provide be with traffic info and better situational awareness. Could not have chosen a better device. Has already alerted me to traffic I would have had great difficulty noticing even with a proper scan. Could not be easier to use. Have not yet seen weather reported on this device but looking forward to seeing that feature. Definitely worth the investment
October 25, 2018
Purchased
1 month ago
Would You Recommend?
Yes
Great addition to the cockpit at a great value
The Sentry has been a great addition to my IFR flying. The ADS-B traffic and weather has come in handy a few times already. Helped me to divert around weather and see traffic before ATC did. Another good feature is the glide distance calculation which is always good to know just how far it is from any airport should the need arise. My CFI is super jealous and wants one for himself. Works flawlessly with ForeFlight as well.
October 23, 2018
Purchased
2 months ago
Would You Recommend?
Yes
Great product and features. Works exactly as advertised!
October 16, 2018
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
Impressive
I spent some time debating between the Sentry and the Stratus and, after some extensive research figuring out the differences between the two, took the plunge on the Sentry. For those, like me, who were wondering exactly why the Sentry is $200 cheaper, it's because 1) the Sentry will only work with Foreflight and 2) the Sentry lacks the external antenna connections. If, also like me, you use Foreflight and have no need for external antenna connections, save the $200 and go with the Sentry. Every other feature advertised with the Stratus is offered in the Sentry, including all FIS-B weather, dual-band traffic, WAAS GPS, and customizable WiFi settings. In addition, the Sentry includes a quality, sturdy-sided carrying that holds the Sentry, the Ram Mount, and spare cables.

Setup with the Sentry is a breeze and it connected immediately without any problems to Foreflight. I was skeptical about the 12 hour battery life, so I tested it by connecting to my iPad running Foreflight with the Sentry in my office window. After 11 hours and 20 minutes of uninterrupted operation, the Sentry finally shutdown. During the entire time, I was receiving UAT and 1090 traffic as well as GPS. It never once disconnected from Foreflight. The only thing that didn't happen was a shortcoming with Foreflight, not the Sentry. Specifically, while Foreflight warned me when the Sentry battery was at 20%, it never announced that it had disconnected. Otherwise, everything went exactly as it was supposed to.

Ultimately, if you need to use apps other than Foreflight or need to be able to connect external antennae, then the Stratus may be required. But, if not not, the Sentry is a excellent product at a great price point.
October 16, 2018
Purchased
1 month ago
Much better value than other options
I’ve considered the Stratus for a couple years, but the price seemed way out of sorts with the hardware, should have been ~$400. When Scout came out last year, I seriously considered it. The lack of GPS didn’t bug me, I had GPS in my iPad. The AHRS was a bigger concern, but the lack of battery ended up being the blocker for me as running a cable to an external battery or power outlet seemed like too much clutter in the cockpit. When the Stratus 3 came out with the better price, I thought maybe they realized they had to come in lower (Still $300 above where I thought it should be). When Sentry came out around the same time and still undercut it by $200, had 50% more battery life and included a CO sensor, plus was smaller I was sold. In the plane, performance has been great. No problem getting weather and traffic. Flying near the NYC Bravo, the extra view of traffic is great & I love weather reports before picking up ATIS. At $500, it’s a 4 star, drop another $100 and it’d be 5.
October 14, 2018
Purchased
1 month ago
Just as advertised
Super easy to use and you can’t be the compact size.
October 3, 2018
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 30 questions Browse 30 questions and 32 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.
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.
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: Not sure about the GPS or the new frequencies. Will have to check
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.
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.
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.
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.
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.
Can/will you ship the Foreflight Sentry (with lithium battery) to Alaska?
A shopper on Aug 13, 2018
BEST ANSWER: Yes, we can send it via UPS. We can not send it via the Postal system.
Will the AHRS in this device work with the AHRS app for an iPhone 6s without Foreflight?
A shopper on Jul 30, 2018
BEST ANSWER: No, the Stratus app will not work with this device.
Can this unit be operated while being charged in the cock pit?
Todd L on Jul 30, 2018
BEST ANSWER: Yes, it can be charged in the cockpit.
Do you have a payment plan?
Gautam B on Jul 29, 2018
BEST ANSWER: You can choose a payment plan when paying with PayPal at checkout.
Does the Sentry have the "Smart Wi-Fi" feature like the Status 3? "Smart WiFi - use your iPad’s LTE connection while connected to Stratus 3"
Russell F on Jul 28, 2018
BEST ANSWER: "Smart Wi-Fi" feature will available in the future app update.
Who makes the unit?
Ralph H on Jul 28, 2018
BEST ANSWER: uAvionix makes it for ForeFlight.
What's the difference between Sentry and Stratus 3? Which is better?
A shopper on Jul 26, 2018
BEST ANSWER: Reply | Flag for CS | Optout | Go to Answer | Edit | Attach itemsThe 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 it have flight recording capability as with the Stratus?
A shopper on Jul 25, 2018
BEST ANSWER: No, it does not.
Does the unit have to be upright for proper operation..or can it be placed on the glare shield ?
Jon H on Jul 24, 2018
BEST ANSWER: Sentry can sit flat on the dash or suction cupped to a side window.
DOES THIS PRODUCT COMES WITH A MOUNT ?
A shopper on Jul 23, 2018
BEST ANSWER: Yes, it has a suction cup mount.
Does this only work with fore flight?
Evert O on Jul 23, 2018
BEST ANSWER: Yes, it only works with ForeFlight.
Also Purchased
Order With Confidence

Our Guarantee

Our guarantee has not changed since we introduced our first product in 1962. If for any reason you are not 100% satisfied with your purchase, let us know – we will make it right. If you would like a refund or exchange, please return the product on a timely basis (within 30 days), in the same condition in which it was received. After 30 days, we will continue to support the product for a full year, but refunds and exchanges are not accepted. Personalized products such as embroidered shirts or engraved glasses are not returnable.

Price Guarantee

Sporty’s guarantees competitive pricing on everything we sell. If you find a competitor offering an identical item at a lower advertised price, just mail or fax us the ad, and Sporty’s will match that price.

Standard Express Shipping

We offer the fastest shipping in the business, so you won’t have to wait for your important charts or a last-minute gift. Since we stock almost everything we sell, we offer same day shipping: in-stock orders placed by 5pm Eastern (weekdays), will be shipped that same day, often within minutes of ordering.

Orders shipping to the United States have three shipping options: ground (which typically takes 3-5 days), 2-day air, or overnight. Note that these are days in transit are business days, so Saturday and Sunday are not included. We ship by UPS and US Mail.

Overnight shipping is also available on most items.

Shipping Zone Map

Return Policy

For over 50 years, in addition to same day shipping, Sporty’s has offered same day returns and same day exchanges. Each day, we process all returns and exchanges before new orders go out. We know of no other company who does this!

Sporty’s Shops
ATTN: Returns Dept
Clermont County/Sporty’s Airport
2001 Sporty’s Drive
Batavia, OH 45103
Customer Service
Privacy Policy