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
4.5 / 5.0
63 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
48
7
3
3
2
Durability
4.7 / 5
Reliability
4.4 / 5
Performance
4.5 / 5
Ease Of Use
4.8 / 5
Value
4.4 / 5
Would You Recommend?
Yes (47)
No (5)
Durability
4 / 5
Reliability
3 / 5
Performance
5 / 5
Ease Of Use
5 / 5
Value
4 / 5
Would You Recommend?
Yes
Disconnected from IPad during instrument approach
I would be 5/5 but I’ve already had it disconnect on me during an instrument approach. It’s only happened once so I am going to keep an eye on it.
July 17, 2019
Purchased
2 weeks ago
Durability
5 / 5
Reliability
4 / 5
Performance
4 / 5
Ease Of Use
1 / 5
Value
3 / 5
Would You Recommend?
Yes
Slow in capturing GPS, picks up traffic real nice.
July 9, 2019
Purchased
4 weeks ago
Durability
4 / 5
Reliability
4 / 5
Performance
4 / 5
Ease Of Use
5 / 5
Value
5 / 5
Would You Recommend?
Yes
All Features Seem to Work
This device packs a lot in a small unit. I have flown about 10 hours with it and it seems to perform well. I link it to an iPad Mini and a regular iPad at the same time. The only problem I have experienced is losing connectivity on the iPad Mini. Don't know what the issue is. When I re-connect the Wi-Fi on the Mini it starts working again.
I mount mine on the left window, it is out of the way and does not overheat which was always a problem with the Stratus.
I haven't tested the Carbon Monoxide tester.
July 1, 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 recently purchased a Sentry to replace an aging Stratus 2. It’s compact size and long battery life are the features that attracted me to Sentry initially. It does not disappoint. I now have about 20 hours of use and am very happy with the switch. The vacuum mount included with the Sentry and it’s compact size make it easy to mount it conveniently without blocking any sightlines. It connects to ADS-B and GPS quickly and reliably. I would highly recommend this for ForeFlight users.
July 1, 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
Excellent product with a much smaller footprint then my stratus and no need for an external antenna
May 21, 2019
Purchased
2 months ago
Not compatible with my Apple iPad
I can’t get it to work, I was informed by your technician that I needed 11.2 operating systems.
I guess I’m in the process of ordering me another iPad to get the system to work.
May 9, 2019
Purchased
2 months ago
Response from Sporty's Pilot Shop
Older iPads can not run the most recent version of Foreflight. You'll need a newer iPad (within the last three to four years) in order to have the processing speed needed for all the advanced features of modern navigational apps.
May 14, 2019
Doug R
Durability
4 / 5
Reliability
2 / 5
Performance
2 / 5
Ease Of Use
5 / 5
Value
2 / 5
Would You Recommend?
No
Not reliable for GPS reception
When it works it is very useful. Unfortunately it loses the GPS and/or ADS-B connection frequently so if you are depending on it for navigation and approaches with Foreflight on an iPad (I use an 11" iPad Pro) you should have a backup such as a paper sectional. Other times the AHRS stopped working then began working sometime later.
I use it in a Piper 140/160 placed on the left side window and I would say that it loses functionality about 30% of the time. Clearly its internal antennas cannot compensate for aircrafted mounted external antennas.
May 1, 2019
Durability
5 / 5
Reliability
5 / 5
Performance
4 / 5
Ease Of Use
5 / 5
Value
5 / 5
Would You Recommend?
Yes
It’s like having a bodyguard in the air
Best combination in one device for a killer price.
Works like a charm. Sees traffic more than 100 nm away in my case. CO warning + GPS + ADS B In = brilliant. Battery life is really good.
April 27, 2019
Purchased
3 months ago
Durability
5 / 5
Reliability
5 / 5
Performance
5 / 5
Ease Of Use
5 / 5
Value
5 / 5
Would You Recommend?
Yes
The way to go
Works better than I expected. A friend has one of the other ADV-Bs that cost a lot more, but does not perform as well.
April 23, 2019
Purchased
3 months ago
Durability
5 / 5
Reliability
5 / 5
Performance
5 / 5
Ease Of Use
5 / 5
Value
5 / 5
Would You Recommend?
Yes
Great product
Very easy to setup and start using with foreflight. Only have used it a couple of times but picked up other ads-b traffic when I did

Battery appears to last 12 hrs as advertised. Charged once when I got it and have not touched it since.
April 22, 2019
Purchased
3 months ago
Question and Answer
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 48 questions Browse 48 questions and 55 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.
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.
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 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.
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.
Had an issue with a new Sentry. Received it and connected to iPad and all good. Worked fine and saw SW flight flying overhead. Plugged in iPad charger overnight and blue light was on and then off in the morning so fully charged. Took it to the aircraft and problems. First, I pressed the power button to turn on and all good, but it would not shut down. Pushed and pushed and nothing. Also, while it connected to the same iPad yesterday, today nothing. I contacted FF and one of the techs suggested that I could have overcharged and messed up the BMS...battery management system. I used my normal Apple iPad usb charging block. Does this sound possible or did I just get a bad unit? Anyone know what the specific charging voltage should be. I thought USB C’s were 3 volts, but not sure. Thanks
David K on Jun 18, 2019
BEST ANSWER: Sounds as if the unit is defective. Please return it to us.
Have heard with multiple reports that the Sentry reception is not as good as the Stratus. Has that improved over the last year or is the Stratus still better?
Cirrusdoc on Jun 15, 2019
BEST ANSWER: The reception is about the same for the units. Stratus may pick up and additional tower or two but that does not affect the information that is being received. ADS-B requires only one tower.
Trying to find a Father’s Day/Birthday gift. My husband has an iPad with weather info and airport info and maps. Is this the same thing? What is an ADS B Receiver? Thanks
Ellen W on Jun 7, 2019
BEST ANSWER: This is a receiver that when airborne will provide free weather and traffic information to the iPad's software. This unit works exclusively with Foreflight.
How can I get a duplicate ram mount for Sentry. I have misplaced mine?
Upland Aviator on Jun 7, 2019
BEST ANSWER: Which part do you need to replace?
Can I Use this item in Europe : France and Switzerland ?
A shopper on May 29, 2019
BEST ANSWER: The Sentry will perform ONLY as a GPS, AHRS and CO detector. ADS-B weather is not available outside the US.
I own a Stratux, is it worth it to upgrade to this or is it an upgrade at all. I find the Stratux software does everything fine, what does this do better?
david B on May 26, 2019
ForeFlight Sentry ADS-B Receiver
ForeFlight Sentry ADS-B Receiver
Stratus 3 ADS-B Receiver
Stratus 3 ADS-B Receiver
BEST ANSWER: The items provide the same ADS-B input.
Will the ForeFlight Sentry ADS-B receiver work on a iPad Air 2?
Jim H on May 22, 2019
BEST ANSWER: Yes, it will.
Will it fully function in the USVI and/or Puerto Rico?
Eric D on Apr 23, 2019
BEST ANSWER: I would be fully functional in Puerto Rico. There is no coverage in the USVI.
Can i see traffic’s detail such as, groundspeed, callsign or another with sentry?
A shopper on Apr 19, 2019
BEST ANSWER: Yes, you will see track, altitude and N number if the traffic is ADS-B Out equipped.
Are there any altitude or line of sight limitations for using Sentry?
Charles on Mar 27, 2019
BEST ANSWER: Like all ADS-B receivers, you'll need to be in flight to get reception most of the time. Coverage is quite good above about 1500 ft. AGL, but like VOR the reception does depend on line of sight.
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.
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