Follow the rocket in the sights to apogee, release the trigger to lock the reading. It is that easy. Use two Altitraks for greater accuracy.
Great for school and science projects!
Estes model rocketry is recommended for ages 10 and up with adult supervision for those under 12.
Used with permission, copyright 2017 Estes-Cox Corp. Copyright 2017 Brey Corp. t/a Hobby Works.