Series 2000 Magnehelic Differential Pressure Gages

The Series 2000 Magnehelic Differential Pressure Gages are versatile, mechanical instruments designed for precise low-pressure measurement in air and noncorrosive gas systems. With 81 models and 27 options, they indicate positive, negative (vacuum), or differential pressure without requiring power—making them ideal for isolation/hospital environments, temporary setups, and applications where electrical connectivity is limited.

Leveraging Dwyer's frictionless Magnehelic® movement, these gages offer accuracy within 1% of full scale (with the -HA High Accuracy option), resisting shock, vibration, over-pressures, and featuring an IP67 weatherproof rating. A mirrored scale overlay and 6-point calibration certificate are included with the -HA option at no extra cost.

• Mechanical Operation: No power required, suitable for off-grid or temporary installations with direct mechanical indication via frictionless Magnehelic® movement
• Accuracy & Range: Standard accuracy ±2% FS; -HA option achieves ±1% FS with wide pressure range options (0-0.1" w.c. to 0-250" w.c.) across 81 models
• Environmental Resistance: IP67 weatherproof rating; resistant to dust, water, shock, and vibration with over-pressure tolerance suitable for pressures <35 psi
• Calibration & Certification: -HA models include mirrored scale overlay to reduce parallax error with NIST calibration and 6-point certification available
• Versatile Applications: Ideal for hospital isolation wards, clean rooms, HVAC duct pressure monitoring, and building pressurization
• Cost-Effective Design: Low-cost alternative to electronic gauges with simple installation and maintenance-free operation