Brunton Altimeter with Barometric Pressure Sensing Instrument ADC-RIDGE

ADC (Atmospheric Data Center)
Get accurate barometric pressure & altitude above sea-level 
Handheld ADC Ridge™
Calibrates easily by turning the altimeter scale ring
Ergonomic body design
Calculates advanced measurements such as relative aire density, heat index, and more
Includes Click-on lanyard
Brunton 2 year warranty
No battery power necessary

Specifications for Brunton Altimeter Instrument ADC-RIDGE:

Overall dimensions:    3.1”x1.2”x0.7”
 
Weight:    3.2 oz
 
Warranty:    Two-year