Freefall Data Systems LLC
SonoAlti SonoAlti

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
  • 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 2 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 20 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
SonoAlti
audible skydiving altimeter
$279
free expedited shipping to US & Canada

*Phone not included.

Technical Specifications

  • Dimensions: 60.5 × 38.5 × 12.25 mm (2.38 × 1.5 × 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)