This altimeter is a two-pointer type, temperature-compensated, housed in a metal/plastic case. Barometric scale located at 3 o'clock position, is manually set by knob located at 6 o'clock position. Standard scale is displayed in inches of mercury. If millibar is required, add M to suffix of part number. See website for up to date pricing.
Dim: 3-1/8 x 3-1/8 x 4-1/2 Weight: 1.0 lbs approximately Power: Static System Range: 20,000 ft