Estes Altitrak Model Rocket Altitude Finder EST302232

This is an Estes ESTT2232 (same as EST302232) AltiTRAK Altitude finder for model rockets. This makes it quick and easy for you to measure how high your rockets are flying. You simply stand back 150 meters from th launcher pad and track the rocket using the sights on the Altitrak. When the rocket reaches Apogee, a trigger on the Altitrak locks in the altitude your rocket reached. It includes instructions for converting to english measurements (feet), and a tangent table and mathematical formula if you want to ignore the easy to-read altitude measurement and calculate the height yourself.