Barometer
Product Code : JL-LE-11299
The Barometer (SKU JL-LE-11299, Cat. No. JSS-259/031) is an aneroid barometer made for classroom demonstration: its working parts sit in a transparent, airtight case, and a pressure bulb lets the teacher change the pressure inside to move the needle. The 100 mm dial reads in both inches of mercury and millibars, for physics and geography lessons on air pressure and weather.
Specifications
Dial, case and base details as listed:
| Product | Barometer |
| SKU | JL-LE-11299 |
| Cat. No. | JSS-259/031 |
| Dial | 100 mm |
| Scales | 28 to 31 inches of mercury; 960 to 1060 millibars |
| Fittings | Plated bezel, cover glass, index |
| Base | Plastic, 16 cm diameter |
| Case | Transparent synthetic, airtight, sealed all round |
| Demonstration | Pressure bulb to force the movement |
Uses of the demonstration barometer
Lessons it supports:
- Showing how an aneroid capsule responds to pressure, with the mechanism visible through the case
- Raising the pressure with the bulb and watching the needle move along the scale
- Reading atmospheric pressure in millibars and inches of mercury in weather studies
- Comparing the reading with the weather to discuss rising and falling pressure
Scope of supply and ordering
Each barometer is listed with its pressure bulb and plastic base; the number of units, packing and dispatch are confirmed on the quotation.
Frequently asked questions
What units does the dial show?
Two scales: 28 to 31 inches of mercury and 960 to 1060 millibars.
What is the pressure bulb for?
It changes the air pressure inside the sealed case so the needle can be moved during a demonstration.
How large is the instrument?
It has a 100 mm dial and stands on a plastic base 16 cm in diameter.
Related products
Other physics apparatus, including pressure and humidity sensors, is in our laboratory equipment range.
Request a quote
To order demonstration barometers, send the number required through the contact page. Institutions and contractors buying under a tender can also reach us via the tenders page.
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