The remarkable P111 Precision Barometer is rated +/- 1.5 millibar (or 0.05 inches) over its entire measuring scale. This accuracy is unheard-of for an instrument in this price range.

The 6" diameter lacquered brass case houses a precision temperature-compensated movement, and the special knife-edge pointer minimizes parallax error when taking readings.

Our most serious barometer in this price range.

Range: 27.50" to 31.50", 931 to 1067 mb.