Orion Barometer Weems and Plath The Orion Barometer offers a remperature compensated, aneroid movement. Our standard barometer movements are calibrated for altitudes up to 3,500' above sea level. The forged brass case is polished and lacquered to resist furnishing. The screw bezel allows easy access to the components for adjustment. The barometer is provided with complete instructions, mounting hardware and a fresh battery. All instruments carry a limited lifetime warranty.
Dial: 3 ¼”
Base: 4 ¾”
Depth: 2 ⅝”