Aneroid Barometer

Product Code : EL-MAILE-10837

Aneroid Barometer (code EL-MAILE-10837) is a triple scale, wall-mountable instrument used to measure atmospheric pressure for weather observation and classroom work. It reads 27.75–31.25 in Hg (70.5–79.4 cm Hg, 940–1080 mbar) with an accuracy of ±0.1 in Hg, has a bimetal element for temperature compensation of its aneroid capsule and a 6 in diameter brass and stainless steel case with a bezel, and needs no batteries or external power.

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Specifications

What Is the Aneroid Barometer Used For?

An aneroid barometer senses air pressure with a sealed, partly evacuated metal capsule that flexes as the outside pressure changes, the movement being carried to the pointer. Pressure readings, and especially the way they rise or fall over a few hours, help forecast short-term weather changes and are used in surface weather analysis to locate troughs, high-pressure systems and fronts. The barometer is mounted on a wall and read at regular times, with the readings logged so that the pressure tendency can be seen, while the bimetal element corrects the capsule for changes in room temperature.

What to Specify When Ordering

• Quantity — the number of barometers required.
• Scale version — the mbar/mm Hg or the mbar/inches Hg model.

Frequently Asked Questions

What pressure range does the barometer cover?
It reads 27.75 to 31.25 in Hg, equal to 70.5 to 79.4 cm Hg or 940 to 1080 mbar, on its triple scale dial.

How close are its readings?
The accuracy is ±0.1 in Hg, which is ±0.3 cm Hg or ±3.5 mbar on the other two scales.

Does it need batteries?
No. The aneroid barometer needs no batteries or external power, so it can be left on a wall for long-term pressure monitoring.

How is temperature change compensated?
A bimetal element provides temperature compensation for the aneroid capsule, so that changes in room temperature affect the pressure reading less.

What is the case like?
The case is 6 in diameter, in solid brass and stainless steel construction, with a bezel for bulkhead mounting; the barometer is wall mountable and can be calibrated.

How can weather be forecast from it?
The pressure tendency, whether the reading is rising or falling, indicates short-term changes in the weather, and pressure readings are used in surface weather analysis to pick out troughs, high-pressure areas and fronts.

OEM Manufacturer

Engineering Lab Equipment (Engineering Labs Equipment Pvt Ltd) builds the Aneroid Barometer at its works in Saha, District Ambala, Haryana (Plot No. 43, Industrial Park, Sector 2, Growth Center). Its measuring instruments and instrumentation trainers for engineering laboratories go to engineering colleges, polytechnics, technical training institutes and research laboratories in India and abroad, and equipment can be made to an institution's own requirements. For tenders and OEM supply, see the Tenders/OEM page.

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See the full Measurement and Instrumentation Lab Equipment range or all Mechanical Engineering Lab Equipment.

Request a Quote

For this and other measurement and instrumentation lab equipment, schools and colleges can contact Engineering Lab Equipment, a manufacturer, supplier and exporter based in Ambala, India. For a price, send the number of barometers and whether the mbar/mm Hg or mbar/inches Hg model is needed and the delivery location through the contact page; the Add To Cart button on this page also adds the Aneroid Barometer to an enquiry.

Last updated: October 2026