Altimeter measure static air pressure, which decreases with altitude. High measuring precision, linear dial gauge, insensitive to shock and vibration, simple zero adjustment with revolving ring are the features of this altimeter.
The wrist-strap with fingerfastening gives a quickly and stabilise position on the back of the hand.
The altimeter case is available in alu nature, yellow, red or black, you have the selection between green or white dials.