Home / Air Handling Units / Technical Bulletin – Pressure Gauges & Switches For Air Filters

Technical Bulletin – Pressure Gauges & Switches For Air Filters

Technical Bulletin – Pressure Gauges & Switches For Air Filters
Jaime Graymead
February 17, 2026

Incline Manometers

Cost‑effective, instruments used to measure pressure differentials across air filters. They use a coloured liquid to display the pressure in Pascals (Pa). They are generally less accurate than other gauge types, and the indicator liquid may fade over time, making readings harder to see.

Typical Measuring Range: 0-500Pa (1908701)

Find out more about our Incline Manometers…

inclined manometer filter pressure guage
Incline Manometer Diagram

Magnahelic Gauges

A circular dial with a needle to display differential pressure in Pascals. Although more expensive than incline manometers, they offer significantly higher accuracy, and are also suitable for sensitive environments such as hospitals, laboratories, and cleanrooms.

Range Options: 0-60Pa (1908702), 0-250Pa (1908702) 0-500Pa Part Number: (1908702)

(Other Scales Available Upon Request)

Find out more about our Magnahelic Gauges…

magnahelic filter pressure guage
Pressure Gauges Diagram

Pressure Switches

Pressure switches do not provide a pressure reading on the device itself but trigger an electrical signal at a set pressure point and can be integrated with a Building Management System (BMS) to activate indicator lights or alarms.

Range Options: 20-300Pa (1908703)(Other Scales Available Upon Request)

Find out more about our Pressure Switches…

Pressure Switch
Pressure Switch Diagram
Magnahelic Gauge “Top Hat” Mount
Magnahelic Gauge “Top Hat” Mount
Pressure Tapping Points
Pressure Tapping Points
Clear Plastic Hose
Clear Plastic Hose
Pressure Tapping Kit
Pressure Tapping Kit
Stainless Steel Bang on P Clips
Stainless Steel Bang on P Clips
Drive Belts
Drive Belts

For more information or quotes contact our sales team on sales@airclean.co.uk or 01622 832777.

Top