As we continue to build upon Mercury’s platform, here are some things to keep on your radar:


Since the Mercury audible family of products is using new technology, it was clear from the beginning that the owners should participate in new software developments. To those who helped test the beta version of the app and are already a part of this process;  we say, “Thank you!”. To those of you joining us now, “Welcome!”

So far your feedback had led us to implemented a fourth canopy alarm for the Mercury Crimson, and two adjustable climb alarms for the Crimson and Jade. We’ve also made advancements to the algorithm and still have more to come.

Download the App

Manage and update your device alarms, settings, and firmware even faster. Use the app to make changes quickly and efficiently on a big comfortable screen without even taking your altimeter out of your helmet. 

Now available on all platforms!

Search “Alti-2 Mercury” in the your preferred app store.

Helmet Adaptors

Mercury fits perfect with G3, G35, G4 and ZX!

We have adaptors for Kiss helmets and Cookie’s Fuel helmets.

Tonfly adaptors coming soon.

Alarm Sounds

The Mercury Crimson features 9 different alarms. This video provides sample audio of each alarm sound.

  • 00:04  Climb Alarm 1
  • 00:09  Climb Alarm 2
  • 00:14   FF-1, First Free Fall Alarm
  • 00:20  FF-2 Second Free Fall Alarm
  • 00:27  FF-3, Third Free Fall Alarm
  • 00:34  FF-4, Fourth Free Fall Alarm
  • 00:42  Canopy-1, First Canopy Alarm
  • 00:49  Canopy-2, Second Canopy Alarm
  • 00:56  Canopy-3, Third Canopy Alarm

Sound Tip:

Speaker Opening Orientation_500x500

Since the Mercury is so convenient and small, you can adjust the volume by turning the speaker opening (not the white one) in best position for your ear. Face the speaker opening towards you ear with the display and buttons towards your helmet.

Know your Firmware Version

The latest version is 1023. 

To check your current firmware version:

    1. Enter into the main menu from Mercury’s home screen.
    2. Select the “System Admin” option, and then “System Status”.
    3. The software version is the four numbers located in the lower left corner.

Version 1018 and above: Updates can be made by the user using the app. Now available on for all platforms.  

Version 1017 and below: You need to send the unit in for an complementary update. Find out how here.

Firmware updates will always be free. The app’s premium features like encrypted BlueTooth settings changes and future extend functions are free for the first year for every Mercury owner. After the first year, premium features access is $20 USD per year.

App Issue? Follow these steps:

   On your Mercury:

  • Go to System Admin-> Delete BLE bonds.
  • Click “Ok”.

   On your phone:

  • Ensure the app is updated to the latest version.
  • Go to Setting->Bluetooth.
  • For each offending device under the “My Devices” list.
  • Tap the ‘i’ icon.
  • Tap “Forget this device”.
  • Restart phone.
  • Go back the app and reconnect to your device. You will be prompted to enter a pairing passkey again

Update: March 21, 2023

APP SS Pairing Failed

App Languages

The app uses the language your phone is set to. We currently have English and German. Spanish, French and Portuguese are on the way. More to come.