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SonoAlti 4V

$389
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Key Features

  • 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 in each preset

  • 32 different alarm sounds

  • 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 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)

  • 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

  • Easily fits in an audible altimeter pocket in your helmet

  • Rechargeable lithium polymer battery (USB charging cable included)

  • Long battery life (approximately 250 jumps or 2 months)

  • Low battery warning alarm at 1,000 feet

  • Check battery status by holding down both buttons

Technical Specifications

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

  • Weight of control unit: 39.1 g (1.38 oz)

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

  • Battery: rechargeable lithium polymer 3.7V 320mAh

  • Peak alarm output volume: 97 dBA @ 10 cm

  • 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: 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)

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