Setra MRG Multi-Range General Pressure Transducer


  • Field Configurable Duct Probe
  • 4 Digit LCD
  • Field Selectable Range
  • Field Selectable Output
  • Simple 5-Step Setup
  • Field Accessible Push-Button Zero & Span
  • External Mounting Tabs & Optional DIN Rail
  • Unregulated AC/DC Operation



The Setra Model MRG is Setra’s newest differential pressure transducer. The Setra MRG is the ideal product for any contractor, combining the flexibility of a multi-range with the performance of a single-range transducer. The MRG has 8 selectable ranges and 3 selectable outputs, easily adjustable on the job with a flip of a switch or jumper. The MRG uses an IP67-rated housing and has a conduit fitting for easy wiring, making the MRG an ideal solution for any general HVAC application.


Key Benefits

  • Universal Design
    The Setra MRG utilizes a universal design that gives the user total flexibility to make changes on the job site. The user has the option to choose the field configurable range, mounting (DIN Rail, wall mount and duct mount), output (mA or Volt) and engineering unit (W.C. or Pascals). This flexibility means that the contractor can use the MRG for all of their needs.
  • 8 Field Selectable Ranges
    The Setra MRG provides 8 field selectable ranges (0.5, 1.0, 2.5 and 5.0”W.C.). These ranges can be selected on site by flipping to the desired range.
  • IP67 Rated Housing
    The MRG housing is a robust IP67 rated design and is sealed with a gasket to make it wash-down capable for difficult applications. The MRG also has a conduit fitting that make installation and wiring easier.
  • Capacitive Sensing Technology
    Only Setra can claim ownership to the stainless steel capacitive design used in all of our HVAC/R sensors. Our advanced capacitive element provides excellent stability and linearity, while standing above the competitors in our ability to measure low pressure (<0.001”W.C.) at high accuracy. Our technology has been used in over 8 million installations and has the highest field acceptance rate in the industry.

Dpstar is an authorized distributor of Setra Systems. We provide our customers with the best selection of instrumentation and equipment with unrivaled prices to perform in Pressure Sensing Solutions. Setra’s pressure sensors are known for their quality and reliability. Designed with premium capacitive sensing technology, Setra offers single-range and multi-range (field selectable) pressure sensors. Capable of measuring both liquid and gasses, Setra has the product to meet a breadth of HVAC applications and can be trusted in your most critical applications. Trust Setra’s over 50 years of pressure transducer engineering excellence.



Performance Data
Accuracy RSS1 (at constant temp) ±1.0% FS
Compensated Range ºF (ºC) 32 to 122°F (0 to 50°C)
Thermal Effects2 %FS/ºF(ºC) 0.03 (0.054)
Maximum Line Pressure 10 PSI
Overpressure Up to 10 PSI (range dependent)
Long-Term Stability (max.) 2.0% FS/YR
Position Effect
Zero Offset %FS/G 0.50%
(Unit is factory calibrated at 0g effect in the vertical position)
Physical Description
Case Fire-Retardant Polycarbonate (UL 94 V-0 Approved), Hinged Lid
Mounting Two Screw Holes Vertical Position
Electrical Connection Block Removable Screw Terminal
Pressure Fitting 3/16” O.D. Barbed Brass
Zero Push Button
Span Push Button
Weight (approx.) 8 Ounces
Electrical Data
Excitation Range 13 to 30 VDC/18 to 24 VAC (Voltage Output) 13 to 30 VDC (4 to 20mA output at terminals)
Current Consumption 30mA (max)
Mis-Wiring Reverse Excitation Protection
Field Selectable Output4 0 to 5 V, 0 to 10V (3-wire), 4 to 20mA (2-wire)
Output Resistance (Voltage Output) 10 Ohms (max)
Load Resistance (Voltage Output) 10 K-Ohms (min)
Loop Resistance (4-20mA) 0 to 800 Ohms
Approval CE & RoHS Compliant
Pressure Media
Typically air or similar non-conducting gases.
1 RSS of Non-Linearity, Hysteresis, and Non-Repeatability.
2 Units calibrated at nominal 70˚F. Maximum thermal error computed from this datum.
3 Operating temperature limits of the electronics only. Pressure media temperatures may be considerably higher.
4 Calibrated into a 50K ohm load, operable into a 10K ohm load or greater.
5 Span (Full Scale) output factory set to within 1%.
6 Calibrated at the factory with a 24 VDC loop supply voltage and a 250-ohm load.
7 Span (Full Scale) output factory set to within ±0.16mA.
Specifications subject to change without notice
Environmental Data
Operating Temperature3 32 to 122°F (0 to 50°C)


Setra MRG Multi-Range General Pressure Transducer_DpstarGroup