This battery on board, miniature altimeter measures barometric pressure to record altitudes of up to 2,150 metres! Small enough to fit into a 25mm diameter rocket, the unit can be mounted to enable the recorded peak altitude to be read without removing the device from your rocket. Comes with a centring ring to allow ease of mounting into a standard 25mm body tube.
Size: 20mm width x 33mm long x 12mm depth
Altitude Range: 15 to 2150m
Activation Method: Power Cycle of finger wave
Batteries (included): 2x CR2016 (6V 75mAh)
Output: Flashing LED, metres or feet