Pull the trigger, follow the rocket in the sights to apogee, then release the trigger to lock the reading. It is that easy. No need for hundreds of dollars of altimeters!
The Estes Altitrack was designed for educational uses, but is perfect for any application of rapid design. Track the altitude of your rocket without reducing the height by adding mass. Two AltiTraks can give you much greater accuracy. Perfect for the mad scientist in you.
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