Additive Engineering 38mm Smart Sled


The 38mm SMART sled makes mounting altimeters into a rocket AV bay simple and painless. There are no holes to drill or parts to glue, and the entire sled is engineered for simplicity.

A switch band at the bottom of the sled can hold the popular Schurter rotary switch, or our PCB Screw switch with an adapter

The Switch is held close to the coupler surface for easy access on the pad.

The battery compartment on the rear of the sled can hold a standard 400mAh Sparkfun LiPo pack. Additionally, a 9V Battery holder can be mounted above or below the sled if desired (sold separately)

There are pre-spaced holes on the front of the sled, which allow a wide variety of altimeters to be attached quickly.

The 38mm SMART Sled is designed for (2) #8-32 rods with 1in spacing

In the event of a catastrophic airframe failure, the bright orange color makes finding your expensive electronics in a field much easier.

SMART sleds are made from environmentally friendly PLA

Compatible Altimeters:
(1) Raven
(1) Stratologger CF
(1) Stratologger SL100
(1) MAWD
(1) Adept22/DDC22
(1) Telemetrum 2.0
(1) Eggfinder Rev B


  • Weight with battery cover - 12g
  • Dimensions: 4" long x 1.254" wide x 0.85" deep
  • Mounting: (2x) #8-32 all-thread on 1in spacing
  • Comes with (4) #2 screws and nylon standoffs, as well as (2) #4 screws for the battery holder
  • Currently only available in high visibility orange.
  • Includes the sled, (1) battery cover, screws, and nylon standoffs.
  • Does NOT come with altimeters, batteries, battery clips, or switches.
Price:$13.95    Wildman Club Price:$12.56