Sper Scientific 736930 Dial Barometer
Dial Barometer for Classroom, Lab, Industrial Use
Large, clear dual-scale barometer in hPa (hecto Pascal) and mm (millimeter mercury) on a 4" dial which is easy to read from a distance. For classroom, lab, or industrial use. Accuracy of ±3 to 4 hPa. Wall mounts.
Weight: 2.6 oz