Dwyer Instruments 2004 Magnehelic Differential Pressure Gauge 0-4 Inches Water Column

The Dwyer Instruments 2004 Magnehelic Differential Pressure Gauge is a reliable instrument designed to measure positive, negative, or differential pressure of air and non-corrosive gases. This gauge features a 0-4 inches of water column (0-4" WC) pressure range, making it ideal for HVAC system monitoring, filter change indication, air flow measurements, and pressure drop applications.

Key Features:

• Dual scale display showing inches of water column and other pressure units
• Magnehelic movement provides accurate, repeatable readings without need for calibration
• Simple two-point calibration can be performed in the field if needed
• Rugged die-cast aluminum case with shatter-resistant acrylic lens
• Tilt-compensated design ensures accurate readings regardless of mounting angle
• Dual 1/8" NPT female pressure ports on back of gauge
• Accuracy of ±2% full scale
• Large 4-inch dial face for easy reading from a distance

The Magnehelic gauge has become an industry standard for measuring low differential pressures in cleanrooms, laboratories, hospitals, pharmaceutical facilities, and industrial environments. Its proven reliability and ease of use make it an essential tool for facility maintenance and system monitoring applications.