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Commonwealth Rocketry, LLC.

47887 Michigan Ave. Suite 207
Canton, Michigan 48188
734-722-Rocket (7625)
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Home » Additional Products » ALTIMETERS


List Price: $44.00
Price: $44.00

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Adept Altimeters

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Q: What is the best way to store and protect my Altimeter or other electronic device. A: The precision amplifier circuitry and continuity sensing circuitry on an Altimeter may be sensitive to noise and static when being held. Always handle any electronic device by the edges when testing or installing to avoid touching any of the circuitry. Avoid carpeted floors and other sources of static electricity when handling and testing an electronic device. Never store in a clear plastic bag; however, pink-colored or smoke-colored antistatic bags are ideal. Storage in a small cardboard box, or wrapped in a paper towel inside a plastic bag is acceptable. Do not use Velcro to secure the device. Use care to keep the device clean and dry.

Q: I hear that a handy way to mount an electronic device in a rocket is with Velcro. Is this a good idea? A: Nope! Velcro is a very good insulator, and tremendous static voltages can build up on the device, especially where humidity is low. Also, when Velcro is pulled apart, arcing from tremendously high voltage static electricity occurs (try this in a dark room).

Q: How about mounting the device on insulated mounts. A: Still not a good idea. When a rocket moves through the air, especially at high speed, the rocket body can build up a significant static charge (this happens with clouds before they generate lightning). The insulated device still has the original charge it had on the ground. A static discharge arc from the inside of the rocket body to the electronic device can damage the device. Note: mounting the device with metal screws to wood or cardboard or metal will limit the buildup of static electricity.


The ADEPT22 Altimeter with Dual Deployment™ is a maximum altitude altimeter that precisely measures, saves, and reports the maximum above-ground altitude value obtained during a rocket's flight. The ADEPT22 also has two altitude controlled deployment current switches that are used to fire deployment charges, based on altitude. The first charge fires when the rocket reaches its maximum altitude (apogee), and the second charge fires when the rocket descends to 1800, 1200, 900, 600, or 300 feet above ground, or six seconds after apogee, or at 150 feet below apogee (7 choices, user selectable).

Some Explanation about This Product:

First the Name. Adept Rocketry was the first company to produce electronic products for the Hobby Rocket market. We are now in our 22nd year. The ADEPT22 is a new design approach (actually a return to an old design approach), so we think a new way of naming a product is okay.

Adept Rocketry used terminal blocks on several products years ago, but then changed to the simple cable plug-on approach to make things simpler. We then coined the term "Plug and Launch™." The accessory hook-up cables and internal batteries are included with each of these products. Over the years we have received a lot of praise for this simple approach.

We now realize that some rocketeers like to do things their own way, and rig the external wiring and batteries themselves. So we now offer this Dual Deployment™ altimeter with a terminal block. The ADEPT22 costs less to produce. It does not have an on-board battery holder, nor a large current supplying capacitor, and it does not require or include an accessory interface cable. You asked for it - here you go.

Includes GP-23A battery!
A $3.99 value!

Instruction Sheet

Why is our price higher than Adept's ?

Adept does not have a dealer program!
We purchase them at list price and mark them up LESS than the FEE they charge for shipping.

Overall, with one stop shopping at CDI Rocketry, you will save money.

This way you can order from one site and save on your overall shipping fee. Our site also shows if we have stock, this way there is NO waiting for your altimeter.
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