Electronics

Designed to allow flights of Jolly Logic altimeters in 18mm diameter airframes like the Viking, this 3D printed ABS nose cone fits in an 18mm body tube and attaches to the shock cord just like a typical nose cone.  But this nose cone flares out to...

Designed to allow flights of Jolly Logic altimeters in 24mm diameter airframes like the Rocketry Works Luna or Toobish kits, this 3D printed ABS nose cone fits in an 18mm body tube and attaches to the shock cord just like a typical nose cone.  ...

This 3D printed altimeter sled is a secure way to mount a Perfect Flite Pnut altimeter in a 24mm tube.  The 23mm round edges slide in and out of a 24mm tube easily, and the recessed alcove for the Pnut altimeter cradles the altimeter out of harm's...

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, particularly if your altimeter separates from the rest...

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 deploy a small drogue parachute at apogee to slow the...

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. It comes in multiple colors, allowing you to help spot the device if it separates from the model.

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, airframe tube, or other part of a model. You can trim the...

The first step in keeping an electronic altimeter safe and working well is to fly it in a payload bay, away from volatile ejection gasses.  But also vital is preventing the altimeter from rattling around inside a payload tube. This 1/8 inch plywood...

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 after 2013.  You can review Jolly Logic's Visual...

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 Visual Repair Guide to see what's involved.