Supreme Precision Instrument, Metric and English Scales Vernier calipers can be used to measure internal and external dimensions with utmost precision. Precise measurements can be made with the fine adjustment thumb roller, and reading scales create no parallax. Parallel jaws are 40mm…

Large, clear, dual scale Four inch dial is easy to read from a distance Gives readings in hecto Pascal (hPa) from 940 to 1060 readable to 1 hPa and mm of Hg pressure from 71 to 80 readable to .1mm. Barometer has an accuracy of ±± hPa. Complete with wall mounts. Weight: 2.6 oz.

Barometric pressure range is 954 to 1073 millibars (mbar), 28.1 to 31.7 inches of mercury (inHg) and 715 to 805 millimeters of mercury (mmHg) Resolution is 0.5 mbar, 0.05 inHg and 0.5 mmHg Accuracy is ±0.5% of reading Dial barometer measures 4 1/2” diameter by 1…

Of strong polymeric plastic Suitable for student use and other non-critical applications Combination inside-outside caliper with depth stem Graduated to 150mm in 0.1 mm increments and to 5 1/4" inches in 0.05” increments 33mm (1.3") diameter dial is rotatable beneath…