photo of top side of bare ALT2430G-290x310 board

  • Smallest recording altimeter in the world?!
  • Tiny: 0.29" x 0.31" (7.4 x 7.9mm)
  • Only weighs 0.4g (without battery)
  • Fits tubes as small as 7.8mm (inside diameter)
  • Bright red LED
  • Data line for bidirectional communication
    or telemetry
  • Firmware is field upgradeable by user
  • Can be used in model rockets, weather
    balloons, kites, model airplanes, etc.
  • Measures up to 100,000 ft. (30.5km) MSL
  • Resolution is 8" (20cm) at sea level
  • Very low power: 150µA (average) @ 3V
    (depends on sample rate)
  • Supply voltage: 2.2V - 3.6V (3.0V recommended)
  • Suggested power source: CR1025 or CR927
    coin cell (battery holder not included)
  • Records air pressure and temperature
  • Data compression to increase recording
    capacity (typically 2500 samples)
  • User selectable startup delay, launch detect
    altitude, sample rate, etc.
  • Recorded data is non-volatile, and only erased
    when explicitly requested (not from accidental
    loss of power due to intermittent connection)
  • Contest directors will appreciate the tamper-
    resistant downloaded data file that includes
    byte-for-byte verification of the firmware version
  • Includes host software for MS Windows; version
    for Android planned for future
  • Conformal coating for protection
  • 4-layer PCB for better EMI immunity
  • Available without wires, with three wires attached,
    or with connector board and two wires attached
  • Requires USB-HalfWire communication module
    (available separately) to erase, arm, download,
    update, etc.
  • (Model name, specifications, and prices are
    only preliminary and subject to change)
  • (Not yet available for sale -- refer to notes.)


photo of top side of bare ALT2430G-290x310 2-up test panel
2-up test panel

Use the Reload/Refresh button in your web browser (or Ctrl+F5 or Shift+Reload) to ensure you get the latest version of this page.
Last revised 2022-May-22 10:31 PDT.
Copyright 2014-2022 David C. Wiens.

Home   Altimeters   Contact   Site map