Estes - 2246 - Model Rocket Altimeter
A sophisticated and lightweight electronic payload for accurately measuring your model rocket altitudes.
A must have for all rocketeers! And a great price too. The Estes Altimeter has a 4 digit LCD read out and displays in English or metric units. Accurately measures model rocket launch altitudes from 0 – 9999 feet (0 – 3000 m) and can store up to 10 consecutive flights! Includes replaceable alkaline battery.