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Technical Specifications

  • Dimensions: 57.6 × 36.1 × 11.9 mm (2.27 × 1.42 × 0.47 in)

  • Weight of control unit: 39.8 g (1.40 oz)

  • Anodizing type: MIL-A-8625F Type II

  • Battery: rechargeable lithium polymer 3.7V 320mAh

  • Peak alarm output volume: 97 dBA @ 10 cm

  • Individual LED peak brightness: 1,000mcd

  • Color depth: 16-bit (65,536 colors)

  • Operating temperature range: −40° to +65° C (−40° to 150° F)

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

  • Altitude resolution: 0.5 m (1.64 ft)

  • Sample rate/Frame rate: 25 Hz

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

  • USB connector: Micro USB 2.0 Type B

  • Wireless technology: Bluetooth®

  • Bluetooth wireless range: circa 2 m (6.56 ft)

Key Features

  • Has all capabilities of SonoAlti 2

  • Rugged anodized aluminum case

  • Logs your jumps (altitude, speed, and temperature) for syncing to FDS Logbook

  • Free Bluetooth® iOS/Android app for setting the altimeter and syncing logged data to FDS Logbook

  • Firmware updates as easy as dragging a file onto a USB drive

  • Store up to five presets and select them via button press on the altimeter

  • Store unlimited alarms and/or alerts in each preset

  • 32 different alarm sounds

  • 33 different light alerts and effects (US Patent No. 10,267,630 B2)

  • Always on

  • Remembers your settings and data when the battery runs out

  • Adjusts automatically to local elevation

  • Freefall threshold can be customized, and freefall alarms and alerts can be disabled below a certain altitude for swoopers and wingsuiters

  • Speaker volume can be adjusted for each individual type of alarm (i.e. ascent, freefall, and canopy)

  • LED brightness can be adjusted

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

  • Tested to function accurately up to 30,000 feet

  • Control unit easily fits in an audible altimeter pocket in your helmet

  • Different types of lights can be plugged into the same control unit

  • Rechargeable lithium polymer battery (USB charging cable included)

  • Long battery life (approximately 200 jumps or 2 months)

  • Low battery warning alarm and light at 1,000 feet

  • Check battery status by holding down both buttons

ColorAlti 2



StickyLight 2A is an adhesive circuit board with LEDs that mounts to your skydiving helmet's visor. It was conceived to be the most minimally invasive StickyLight ever produced, with wires measuring only 2 millimeters thick in most places of peripheral vision. It contains three individually addressable LEDs that protrude like tear drops from above the jumper's right eye. The integrated clip can be used to provide additional strain relief to the cable and keep it in place. Fits almost any closed-face helmet.



For those who want a bit more light coverage, these StickyLights contain 10 LEDs that extend on a stem above the jumper's right eye. StickyLight 2B also has a very minimal footprint for the light coverage it provides thanks to its sleek design. The integrated clip can be used to provide additional strain relief to the cable as well as keep it in place. Fits almost any closed-face helmet.




These flexible gooseneck lights can be bent into shape and keep their form once installed. They utilize the same proven rigid construction of the original FlexiLight from ColorAlti®, but have four individually addressable LEDs instead of one single RGB LED. Although they are intended primarily for open-face helmets, these lights can be used in closed-face helmets as well.




RigidLight is another type of visor-based light with a minimal footprint that contains 10 LEDs. Unlike StickyLights, these lights contain a rigid circuit board mounted with screws and nuts that can be removed and mounted on other visors once the visor needs to be replaced. This option requires drilling into the visor.

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