The Dwyer DM-1000 Series DigiMag Digital Differential Pressure Gauge is a versatile instrument designed for precise measurement of differential pressure, air velocity, and flow for air and non-combustible gases. Equivalent to the Magnehelic gauge in functionality, it features a 4-digit LCD display with selectable Imperial/Metric units and intuitive 4-button controls for easy calibration.

Field-programmable for pressure, velocity, or flow modes, the DM-1000 can be set to flash alerts for filter maintenance, track peak/valley data, and adjust display updates—making it ideal for HVAC, clean room, and industrial filtration applications.

• Multi-Function Measurement: Differential pressure, air velocity, and flow rate (with pitot tube/K-factor settings)
• Filter Maintenance Alerts: Display flashing for filter clogging alerts and maintenance scheduling
• Precision & Stability: ±1% FS accuracy (±2% for ranges ≤1" w.c.) with ±1% FS/year long-term stability
• Temperature Compensation: 32-122°F/0-50°C range for consistent readings
• Flexible Display & Units: 4-digit LCD (0.60"H digits) with update intervals (1 sec-10 min) or button-triggered updates
• Selectable Units: in w.c., psi, kPa, mm w.c., mBar, and more
• Power Options: 9V battery (1.5-year life in standby) or 9-24 VDC external power
• Durable Housing: NEMA 4X (IP66) fiberglass housing for dust and water protection
• User-Programmable Functions: Security level settings, K-factor calibration for flow sensors, data smoothing, and zero-to-full span adjustments