Barometer Demonstration Aneroid Manufacturer,Supplier and Exporter
Product Code : SEL-PLE-10153
Quick Answer: Rather than waiting for the weather to change, this demonstration aneroid barometer uses a rubber compression bulb to raise or lower the air pressure on demand, so the class sees the needle move on its 10cm graduated dial.
Last updated: October 2026
Key Features
Circular 10cm graduated dial
Also marked in inches and mm of mercury
Plated bezel, cover glass and index
Plastic base
Rubber compression bulb with tubing connection for varying the air pressure
Technical Specifications
Specification
Value
Dial
Circular, 10cm, graduated
Additional scales
Inches and mm of mercury
Bezel and cover
Plated bezel, cover glass, index
Base
Plastic
Pressure control
Rubber compression bulb and tubing
About This Product
Squeezing the bulb increases the pressure on the aneroid capsule and the pointer swings one way; releasing it lets the reading fall back. This turns an instrument that normally changes over hours into a live demonstration of how an aneroid barometer responds, and a starting point for lessons on air pressure and pressure units.
Frequently Asked Questions
How is the pressure changed during a demonstration?
A rubber compression bulb with a tubing connection varies the air pressure, showing the effect of increasing or decreasing pressure on the reading.