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Differential Pressure Transmitters

41 Products
Wet/Wet Differential Pressure Transmitter, 4-20 mA, Temp Compensated

The Series 647 Wet/Wet Differential Pressure Transmitter accurately monitors pressure in air/liquid systems. Temperature compensated with a 4-20 mA output for easy integration.

Low Pressure Differential Pressure Transmitter, ± 0.50% Accuracy, 4-20 mA

Differential Pressure Transmitters sense low pressure of air and gases, then sends an output signal. All models are factory calibrated to specific ranges

Diff Pressure Transmitter for Gases/Liquids, 1% Acc., 4-20 mA/0-10 Vdc

Differential pressure transmitters suitable for measuring over-pressure, under-pressure, and differential pressure in compatible gases and liquids with 1% accuracy.

Pro Differential Pressure Transmitter - 32 Ranges - NIST Options

The Pro Differential Pressure Transmitter offers 32 configurable ranges for precise monitoring in critical environments. Ideal for building performance and air flow applications.

Programmable Differential Pressure Transmitter, 4-20 mA, NEMA 4X, 0.5% Accuracy

Intrinsically Safe Differential Pressure Transmitter can be programmed to read in pressure, flow, or velocity in hazardous locations.

Compact Differential Pressure Transmitters, ± 0.8% FS Accuracy, 15 psig

The Series 668B/D Compact Differential Pressure Transmitters offer high accuracy and lightweight design, ideal for HVAC control and duct pressure measurement.

Differential Pressure Transmitters – ± 0.4% to ± 0.8% Accuracy, 0.1-25 inH2O

The Series 648B and 648C Differential Pressure Transmitters are ideal for clean, dry air and non-corrosive gases, featuring easy calibration and rugged design.

616KD Differential Pressure Transmitters, One-Touch® Calibration

"Measures fan velocity pressure for air comfort and filter differential pressure for maintenance. Its compact design minimizes control panel installation space."

DIN Rail Differential Pressure Transmitter, 4-20 mA, 0.1-25 inH2O

DIN Rail Mount Differential Pressure Transmitter senses pressure of air and gases then sends an output signal.

Vacuum Differential Pressure Transmitter, Adjustable Range, Adjustable Response

Differential pressure transmitters measure differential pressure and vacuum with adjustable ranges and output signals, suitable for installers and maintenance professionals.

DM-2000 Differential Pressure Transmitter for Air & Gases, 4-20 mA

Differential Pressure Transmitter senses pressure of air and gases and sends an output signal. Designed to mount in the same diameter cutout as a Magnehelic gage.

Wet/Wet Differential Pressure Transmitters, ± 0.25% Accuracy, 4-20 mA

The Series 645 Wet/Wet Differential Pressure Transmitters offer high accuracy for gas and liquid applications, ideal for process control and HVAC systems.

Industrial Differential Pressure Transmitter, Water-Resistant, ± 0.25% Accuracy

The IDPT Industrial Differential Pressure Transmitter has a durable, water-resistant housing and offers stable accuracy for extended use in industrial settings.

677B Low Pressure DP Transmitter, ± 0.4% Accuracy, NEMA 4 Housing

Differential Pressure Transmitter measure pressures as low as 0.1 in w.c. Applications include variable air volume, environmental pollution control, and building energy management.

Differential Pressure Transmitter, 0.5% F.S., 4-20 mA, NEMA 4, CSA Approved

Fixed Range Differential Pressure Transmitter is used to measure pressures of liquids, gases, and vapors. This model is designed to withstand the harshest environmental conditions.

Low Differential Pressure Transmitters, ± 0.25% or ± 0.5% FS Accuracy

Low Differential Pressure Transmitter measure pressure and flow at high resolutions. Easy access pressure ports and electrical connections

3100MP Smart Pressure Transmitter for Flow/Level, HART, Hazardous Locations

Explosion-Proof Multiplanar Differential
Pressure Transmitter is a microprocessor which has a flexible pressure calibration. Design simplifies installation.

Differential Low Pressure Custom

The Differential Low Pressure Custom series offers reliable air flow measurement and filter monitoring for building and duct static pressure control.

Rangeable, Wet/Wet Differential High Pressure Transmitters

The PX2310 series is suitable for energy management, process control, liquid level systems, etc. with 4 selectable outputs for ranges from 0-50 to 0-200 psi.

Differential Pressure Transmitters with 6 Field Selectable Ranges

The PX274 series have a rugged, seamless, NEMA 4 enclosure and 6 field selectable ranges with a 4-20 mA output. Available in ranges from 0-0.1 to 0-30 in H2O.

Differential Pressure Transmitters

Differential Pressure Transmitters convert pressure difference between two ports into an electrical signal for controls and monitoring. Products in this category span ACI, Omega Engineering, and Dwyer Instruments low differential transmitters for airflow and filter monitoring, panel-mount devices, 4 to 20 mA air and gas transmitters, wet/wet and wet/dry transducers, and compact duct pressure transmitters.

Applications include:

  • Building airflow and duct static pressure control
  • Filter, coil, and fan pressure drop monitoring
  • Cleanroom, data center, and critical room pressure systems
  • Wet/wet, wet/dry, and process differential pressure measurement

Choose by range, media, output, accuracy, mounting, calibration access, and whether the application is low-pressure air or industrial process service.

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