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Differential Pressure Transmitters

45 Products
MSX Magnesense® Differential Pressure Transmitter, 32 Ranges, Dual Output

The MSX Magnesense® Differential Pressure Transmitter offers 32 pressure ranges and dual outputs, ideal for building control in various applications. Easy to install and read.

Magnehelic® Transmitter for Low DP Monitoring in HVAC, 4-20 mA Output

The Series 605 Magnehelic® Transmitter offers easy visual monitoring of low differential pressure in HVAC systems, featuring a clear dial and reliable 4-20 mA output.

High Accuracy, Wet/Wet Differential Pressure Transmitters

The PX2300 series are ideal for measuring pressure drop across filters and/or in corrosive media, with a weatherproof, NEMA 4 enclosure and high ± 0.25% accuracy.

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.

616KX Differential Pressure Transmitters, One-Touch® Calibration

Transmits velocity pressure at-fan or differential pressure across filters. Its compact, minimizing space needed in control panel. Easy set-up and one-touch calibration.

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.

Differential Pressure Transmitter for Air/Gases, 4-20 mA Output

The Series DM DigiMag® Differential Pressure Transmitter measures air and gas pressure with a 4-20 mA output. Its easy calibration and compact design simplify installation and use.

Rangeable, Differential Pressure Transmitters with Display

The PX3005-DIFF differential series are rangeable, with a backlit LCD display, ideal for monitoring pressures in process automation, hydraulic, and tank level applications.

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.

Smart Differential Pressure Transmitter, HART®, Hazardous Area

Explosion-proof Differential Pressure Transmitter has a flexible pressure calibration, programmable with HART communication, and push button configuration.

Differential Pressure Transmitter, ± 0.25% Accuracy, NEMA 4X, 4-20 mA Output

Positive, negative and differential pressures can be measured within a full span accuracy of ± 0.25.

Differential Pressure Transmitter, 4-20 mA/0-10 Vdc, DIN Rail, Air/Gas

DIN Rail Differential Pressure Transmitter are not intended for re-ranging. Designed to mount on a DIN rail. Versatile circuit design enables operation in 2-wire current loops.

Wet/Wet Differential Pressure Transmitter, Dual Sensors, 0.5% Accuracy, NEMA 4X

The Series 629C Wet/Wet Differential Pressure Transmitter features dual sensors for accurate monitoring of gases and liquids. Its NEMA 4X design ensures durability and reliability.

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."

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.

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.

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.

Cost-Effective HVAC Differential Pressure Transmitter, ± 1% Accuracy, Compact

Compact Differential Pressure Transmitter is compact, lightweight, and features reverse-polarity protection. Units also feature reverse-polarity protection.

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 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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