SonoAlti Audible Altimeter

SonoAlti Audible Altimeter

SonoAlti Audible Altimeter
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The new SonoAlti Audible Altimeter from Freefall Data Systems!

SonoAlti is the first audible that interfaces with an app via Bluetooth® wireless technology. This powerful interface provides the user with an unprecedented level of control over all aspects of the audible altimeter's functions.

SonoAlti makes setting your audible altimeter easier than ever! Just download the free FDS Altis app from Google Play or Apple's App Store, and configure all your setting right on your phone.

Key Features

  • Free Bluetooth wireless technology iOS/Android app for setting and gathering data from the altimeter

  • Up to 8 freefall, canopy, and ascent alarms

  • 64 different alarm sounds

  • Logs jumps, canopy and freefall time

  • Ability to save an unlimited number of presets for quickly changing settings for different jump types.

  • Provides altitude and vertical speed graphs of your last jump (records up to 7 minutes of data), which can be saved to your photos for future reference or sharing with friends

  • Rechargeable lithium polymer battery (USB cable included)

  • Long battery life (approximately 200 jumps or 3 months)

  • Low battery warning beep (long flatline) at 1,000 feet

  • Always on

  • Remembers your settings and data when the battery runs out

  • Adjusts automatically to local elevation

  • App can display in both feet and meters, mph and kph

  • Wingsuit mode gives wingsuiters a more accurate assessment of their flight time and lowers the threshold of what is considered freefall from 80 mph to 40 mph

  • Swoop mode makes certain that all freefall alarms are turned off below 1,500 feet and increases the threshold of what is considered freefall from 80 mph to 100 mph

  • Speed Tracker feature for realtime feedback of approximate freefall vertical speed via beeps

  • Volume can be adjusted for each individual type of alarm (i.e. freefall, canopy, speed tracker, ascent)

  • Provides unprecedented user control over the pitch and tempo of the alarms

  • Landing zone altitude adjustments can be made for those landing at a different altitude than takeoff

  • Designed to function up to approximately 30,000 feet

Technical Specifications

  • Dimensions: 60.5 x 38.5 x 12.25 mm (2.38 x 1.5 x 0.48 in)

  • Weight: 31.0 g (1.1 oz)

  • Battery: rechargeable lithium polymer 3.7V 800mAh

  • Peak alarm output volume: 110 dBA @ 10 cm

  • Operating temperature range: -30 to +50 C (-22 to 122 F)

  • Operating altitude: -500 to 9,000 m MSL (-1,640 to 29,528 ft)

  • Altitude resolution: 1 m (3.3 ft)

  • Sample rate: 12.5 Hz

  • Permissible charging temperature range: 0 to +50 C (32 to 122 F)

  • USB connector: Micro USB 2.0 Type B

  • Wireless technology: Bluetooth Low Energy

  • Bluetooth wireless range: circa 5 m (16.4 ft)


Manual/Instruction Video

List of Sounds with Examples


Free iOS App on Apple App Store

Free Android App on Google Play

Detail Information

Alarm TypeCustom alarm - see product description, Freefall and canopy alarms
Battery TypeRechargeable
Data LogLogs jumps, canopy and freefall time. Provides altitude and vertical speed graphs of your last jump (records up to 7 minutes of data), which can be saved to your photos for future reference or sharing with friends.
Downloadable InfoYes
Feet or MetersSettings for Feet and Meters
FunctionAltimeter only
Protective Case AvailableNo
Replaceable LensNo
Saveable ProfilesYes
Visual PortNo
Water ResistantNo
Night Jump GlowNo
Size60.5 × 38.5 × 12.25 mm (2.38 × 1.5 × 0.48 in)


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Customer Reviews 8 item(s)

Why would you not buy this?!
Why would you not buy this?! It's very comfortable in my helmet had no issues with that at all. I have used other competitors audibles and the user experience is not nearly as good as this product and it's the same price! I have tons of presets for different jumps and love it! The battery life is super good, no need to worry about getting a watch battery just charge every once in awhile.
Review by Benjamin / (Posted on 1/2/2019)
Very happy
Great customer service , Casey was awesome! very informative, I can’t say enough good things about him and his product I’m very happy with my new audible, thank you Casey !
Review by Robert / (Posted on 12/5/2018)
Feels thick as a brick
The biggest problem is with the shape. It feels so thick when in the helmet. That is partially because it is thick, but also because it isn't nicely curved like the L&B products are. Completely uncomfortable in my helmet where an Optima fits without being noticed at all. The slide switch feels really cheap. The switch may be very durable, but it is not confidence inspiring at all. The unit isn't water resistant apparently.
Review by Joe / (Posted on 9/28/2018)
Very nice, great success
Very happy with this audible. So many sound options as well as sound frequencies to choose from.
Review by Andrew / (Posted on 8/29/2018)
Technology done RIGHT!
The ease of use with the altimeter is what drew me to it. I am so happy with the up and coming technology. It takes less than a minute to get it up and running after charging and the battery life is very long! The customization is also amazing! Must buy!
Review by Paul / (Posted on 4/3/2018)
This audible is great!
Amazing device very easy to use, Very accurate, fits comfortaby, and best of all the owner and creator is a really cool guy who is very enthusiastic to help with if any you have issues. Perfect for begging skydivers!
Review by Zach / (Posted on 3/22/2018)
Great audible
Such an easy to use audible for low price. Works great and battery lasts forever. I love how you can connect your Bluetooth on your phone to the audible and change all the dynamics and settings straight from an app on your phone. Definitely would recommend to anyone.
Review by Haley / (Posted on 2/26/2018)
User Friendly
I have been jumping with a Sono Alti for over 100 jumps. The app is user friendly, and I like how easy it is to set and change alarms.
Review by Tara / (Posted on 2/24/2018)
SonoAlti Audible Altimeter