Noun
An instrument for taking altitudes, as a quadrant, sextant, etc.
Source: Webster's dictionaryA combined altitude radar altimeter provides precise height above ground information to the pilot for navigational purposes as well as a signal to DARMS for film annotation. Source: Internet
A mechanical altimeter has a knob that needs to be manually adjusted to make it point to 0 on the ground before jump, and if the landing spot is not at the same altitude as the takeoff spot, the user needs to adjust it appropriately. Source: Internet
An altimeter cannot, however, be adjusted for variations in air temperature. Source: Internet
All the important sports metrics are included, GPS, heart rate, ABC (altimeter, barometer, compass), as well as motion tracking so you can keep track of your steps and other activity. Source: Internet
An altimeter is the most important piece of skydiving equipment, after the parachute itself. Source: Internet
Analysis of the received altimeter echoes showed that the channels are located in deep (up to ~570 m), steep-sided, canyons and have strong specular surface reflections that indicate they are currently liquid filled. Source: Internet