Altimeters for Rocketry:

AL101 Altimeter:  The famous, build it yourself, "Roll Your Own Altimeter" from the Rocketry Online forum by Jeff Karpinski.  A great beginner's barometric altimeter with dual deployment capabilities, plus an audible readout of altitude and an optional LCD display.  Capable of flying to 10.5 Km (approx. 35,000 feet) altitude.

AL101 with a Microchip MCU instead of a TICkit.  (Gotta come up with a better name for this . . .)
 

Last Updated:  30 October, 2001