Dwyer Instruments 2204 Magnehelic Differential Pressure Gauge 0-4 PSI

The Dwyer Instruments 2204 Magnehelic Series 2000 Differential Pressure Gauge is a highly accurate, frictionless measuring instrument designed for monitoring positive, negative, or differential pressures in air and non-corrosive gases. With a measurement range of 0-4 PSI, this gauge is ideal for filter monitoring, static pressure measurement, velocity determination, and system balancing applications across HVAC, clean room, and industrial process environments.

Key Features:

• Magnehelic movement with no mechanical linkages eliminates friction for superior accuracy and repeatability
• Large 4-inch dial face with easy-to-read graduations for quick visual reference
• Accuracy of ±2% of full scale ensures reliable measurements
• Dual pressure ports accept 1/8-inch, 3/16-inch, or 1/4-inch tubing for flexible installation
• Non-corrosive polycarbonate case with flush mounted acrylic crystal withstands harsh environments
• Zero adjust feature allows for field calibration and compensation
• Can be panel mounted, wall mounted, or used with optional accessories
• No external power required for operation

The Magnehelic gauge's helix and spiral design provides linear scale indication throughout the entire range, making it the industry standard for differential pressure measurement. Its durable construction and reliable performance have made it a trusted instrument in industrial, commercial, and laboratory applications for decades.