Dwyer Instruments 2302 Magnehelic Differential Pressure Gauge 1-0-1" WC Zero Center

The Dwyer Instruments 2302 Magnehelic Differential Pressure Gauge is a precision instrument designed for measuring positive, negative, or differential pressure in air and non-combustible, non-corrosive gases. This zero-center model features a 1-0-1 inch water column (w.c.) range, making it ideal for applications requiring balanced pressure measurement around a neutral point.

Key Features:

• Zero-center scale ranging from -1 to +1 inches of water column for measuring both positive and negative pressures
• Magnehelic diaphragm design provides accurate, reliable readings without mercury or other hazardous fluids
• Large 4-inch dial with easy-to-read graduations for quick pressure monitoring
• Rugged die-cast aluminum case construction for durability in industrial environments
• Minimal maintenance required with no moving mechanical linkages to wear out
• Suitable for measuring filter resistance, air velocity, furnace draft, pressure drop, and static pressure
• ±2% full-scale accuracy ensures dependable measurements

The Magnehelic gauge has been the industry standard for differential pressure measurement for decades, trusted by HVAC professionals, facility managers, and industrial technicians. The zero-center range of this model makes it particularly useful for monitoring balanced ventilation systems, cleanroom pressure differentials, and applications where bidirectional pressure measurement is essential.