Victorinox Swiss Army Altimeter Multi-Tool 19-function multitool with digital altimeter for hikers, mountain climbers, and cyclists Reads altitude between -300 and 18,000 feet; accurate to within 5 feet Displays outside temperature from 0 to 140 degrees F (also shows Celsius reading) Includes traditional Swiss Army blades, corkscrew, can opener, bottle opener, tweezers, and more High-quality stainless-steel arms; 3-5/8 inches long; lifetime warranty