Magnehelic

The Magnehelic Differential Pressure Gauge is engineered to provide precise low-pressure measurements in environments where airflow or pressure balance is critical. From cleanrooms and laboratories to HVAC ducting and filter monitoring systems, it ensures accurate differential pressure readings that help maintain safety, efficiency, and compliance. The gauge uses a sensitive diaphragm mechanism that responds quickly to pressure changes, delivering smooth and highly accurate readings without the need for complex electronics.

Its large, easy-to-read analog dial allows technicians and operators to check system status at a glance, reducing errors and improving on-site decision-making. Constructed with a rugged aluminum case and shatter-resistant acrylic lens, the Magnehelic gauge is built to last in industrial settings with vibration, dust, or temperature variations. It can be surface-mounted or panel-mounted, making it flexible for new installations or retrofits.

Compared to electronic pressure sensors, the Magnehelic gauge offers the advantages of zero power consumption, high durability, and stable performance without calibration drift. This makes it ideal for continuous use in air handling units, cleanroom pressure control, filter health indication, pneumatic systems, and environmental monitoring applications. Its reliability, simplicity, and affordability make it one of the most widely trusted pressure gauges in the industry.