A barometer is a scientific instrument used in meteorology to measure atmospheric pressure. Pressure tendency can forecast short-term changes in the weather. Many measurements of air pressure are used within surface weather analysis to help find surface troughs, high-pressure systems and frontal boundaries.

Triple Scale Aneroid Barometer is made of solid brass & stainless-steel construction, which keeps it durable for years of classroom use. Measuring 6 in diameter it is wall mountable, calibrate able and is also RoHS compliant. The range of the meter is 27.75 – 31.25 in Hg, 70.5 – 79.4 cm Hg, 940 – 1080 m bar and the accuracy of the meter is ±0.1 in Hg, ±0.3 cm Hg, ±3.5 m bar.