You don't need to know any math to find out how high your rockets flew. Just use this new tracking device. Each cardboard sheet contains a simple-to-assemble tracking scope, and an easy-to-use altitude calculator. Easier to use than the Estes Altitrak. You can find the altitude of the rocket in seconds, and you don't need to perform any math. Great for younger children!

Electronic Altimeter:

Altimeter (Click Here For More Details)

An altimeter is an electronic device carried in the rocket as it launches into the sky. It measures altitude by sensing the drop in atmospheric pressure. It is a lot more accurate than the altitude tracker shown on this page. Check it out!