Jolly Logic

This Velco® closed Nomex® sleeve fits comfortably over Jolly Logic altimeters, protecting the sensitive electronics from hot ejection gasses. The bright colored fabric also aid in recovery,...

This Velcro® strap with a bright red ARM ELECTRONICS banner helps you remember to arm your electronics before flight.

Overnight, Jolly Logic's ChuteRelease revolutionized model rocket parachute recovery. Traditionally, model rockets could use 1 or more electronic altimeters and black powder ejection charges to...

These replacement rubber bands, pins, and tethers for the Jolly Logic Chute Release replace commonly lost or broken parts.

This fire resistant Nomex cloth sleeve for the Jolly Logic ChuteRelease deployment altimeter helps protect your electronics from hot ejection gasses. Currently available only in orange, which helps...

This snap mount for Jolly Logic AltimeterOne, AltimeterTwo, and AltimeterThree manufactured after 2013. It includes two screws or two bolts with nuts to secure the snap mount to a payload sled,...

LiPo batteries used in Jolly Logic altimeters can suffer damage from rough landings or from the ravages of time.  This replacement battery works with all Jolly Logic altimeters manufactured...

Jolly Logic Altimeters are designed to be modular and user-servicable. So if your case is damaged, you can easily replace the case of any altimeter made after 2013.  You can review Jolly Logic's...

You can replace the LCD screen in any Jolly Logic altimeter manufactured after 2013 with this LCD screen. You can review Jolly Logic's Visual Repair Guide to see what's involved in the replacement.

Jolly Logic's AltimeterOne altimeter is suitable for use in any sport where you want to know the altitude difference: rocketry, aeronautics, falconry, drone flights, etc. It features a...

Jolly Logic's second altimeter is intended for model rocketry only, and not other flight sports.  But with that caveat comes a 10 types of data to analyze with each flight: Maximum...

AltimeterThree is Jolly Logic's entry into connected devices, with this bluetooth connected altimeter. Just download the Android or iPhone app to your phone or tablet, power on the AltimeterThree,...