Quick Answer

The Jolly Logic AltimeterOne is a compact, rechargeable flight altimeter that suits most model rocket flights, but it lacks the logging and expansion features of larger units. Choose it for simplicity and portability, not for multi-parameter telemetry.

Why the AltimeterOne Stands Out

The AltimeterOne packs a 19-bit barometric pressure sensor into a tiny, rugged body. It detects altitude changes of less than one foot, so you get precise readings even on modest flights. Its sunlight-readable LCD means you can check your peak altitude right at the pad without a phone or computer.

Because it is rechargeable, you avoid buying and replacing batteries. That convenience adds up over a season of launches, and the small size makes it easy to fit into tight rocket bays.

What It Does Not Do

The AltimeterOne is a single-function altimeter. It records only peak altitude, not speed, acceleration, or flight profiles. If you need detailed data for performance analysis or dual-deployment events, you would need a more advanced unit.

It also has no wireless telemetry or data download. You read the altitude directly from the display, which is fine for many fliers but limits post-flight analysis.

The absence of these features is a deliberate trade-off: it keeps the device simple, affordable, and easy to use, but it is not a full flight computer.

Decision Rules for Buying the AltimeterOne

  • If you want a simple altitude reading: Choose the AltimeterOne if you only need peak altitude and want a device that works right out of the box. It is ideal for sport flying and verifying ejection charges. Check that your rocket has a compartment that fits the AltimeterOne's small size.
  • If you need flight data logging: Skip the AltimeterOne if you need to download flight profiles, speed, or acceleration data. Look for a logging altimeter or flight computer instead. List the data you actually need before comparing models.
  • If you fly high-power rockets with dual deployment: Do not rely on the AltimeterOne for dual-deployment events. It does not have the outputs or programmability required for that. Use a dedicated dual-deployment altimeter. Verify your altimeter's deployment capabilities before your first high-power flight.
  • If you want a reusable, low-maintenance device: The rechargeable battery and rugged construction make the AltimeterOne a good long-term investment for frequent fliers who want a no-fuss tool. Remember to charge it before launch day.

Product Facts

  • Jolly Logic AltimeterOne: The AltimeterOne uses a highly accurate 19-bit barometric pressure sensor that can detect altitude changes of less than one foot. You get reliable, precise altitude readings even on low flights, so you can trust the number you see on the display.

    Jolly Logic AltimeterOne

    Jolly Logic AltimeterOne

  • Jolly Logic AltimeterOne: It features a sunlight-readable LCD display. You can read your peak altitude directly in bright outdoor conditions, without needing a phone or computer.

Who Should Choose the AltimeterOne

Best for

  • Model rocket fliers who want a simple, reliable peak altitude reading
  • Beginners looking for an easy-to-use altimeter without complex setup

Not for

  • Fliers who need detailed flight data logging or telemetry
  • High-power rocketeers requiring dual-deployment control