Dwyer 2000-0 C Magnehelic Differential Pressure Gauge 0-0.5 In H2O 15 PSIG

Dwyer 2000-0 C Magnehelic Differential Pressure Gauge 0-0.5 In H2O 15 PSIG

The Dwyer 2000-0 C is a Magnehelic differential pressure gauge with a 0–0.5 inch water column measurement range. It uses a frictionless, all-mechanical movement — no moving parts in contact with the process air — to provide accurate, repeatable differential pressure readings without the need for electrical power. The gauge reads in inches of water (In H2O) and is designed for continuous measurement of low differential pressures in HVAC, filtration, and process air applications.

Specifications & What's Included

• Manufacturer: Dwyer Instruments, Inc. — Michigan City, IN 46360, U.S.A.
• Catalog Number: 2000-0 C
• Lot / Date Code: W17V JC
• Measurement Range: 0–0.5 inches of water (In H2O)
• Scale: Inches of Water
• Max Pressure: 15 PSIG (100 kPa)
• Max Temperature: 140°F (60°C)
• Min Temperature: 20°F (-6°C)
• Pointer: Red analog needle
• Bezel: Chrome-finish metal ring
• Housing: Dark gray die-cast back body
• Pressure Ports: Two brass barb fittings (high and low pressure), bottom-mounted
• Zero adjustment screw visible on front face
• Patents: 3,862,416 / 4,011,759 / 4,030,365 / 4,890,497 / 5,012,678
• Gauge only — no tubing, fittings, or mounting hardware included

Applications

The Dwyer Magnehelic series is one of the most widely used families of differential pressure gauges in HVAC and industrial air-handling applications. The 2000-0 C, with its 0–0.5 inch water column range, is particularly suited to measuring very low pressure differentials — such as the pressure drop across air filters, HEPA filter banks, and fan inlet/outlet sections — where early detection of filter loading helps maintain system airflow and air quality. These gauges are standard equipment in cleanrooms, hospitals, pharmaceutical manufacturing, and commercial building HVAC systems for continuous filter monitoring. They are also used to measure duct static pressure, fan performance, and flow in low-velocity air systems. The Magnehelic design, introduced by Dwyer in the 1960s and still in production today, uses a proprietary magnetically coupled movement that eliminates the need for liquid filling or mechanical linkages in contact with process air, making it exceptionally durable and maintenance-free in service.