--- title: Model 201 | Very Low Differential Pressure Transducer description: Pressure | Model 201 | Setra Systems image: https://www.setra.com/hubfs/Resized_Product_Images/Model_201_NB.jpg --- ** ** ** - Website Pages - Products [![Setra Systems Logo](https://www.setra.com/hubfs/setra-logo.svg "Setra Systems Logo")](https://www.setra.com/) ![drop-down-pressure](https://www.setra.com/hs-fs/hubfs/angle-arrow-pointing-to-right.png?width=15&name=angle-arrow-pointing-to-right.png) **[Pressure Sensors](https://www.setra.com/product/pressure)** [Differential Pressure Sensors](https://www.setra.com/product/pressure/differential) [Absolute Pressure Sensors](https://www.setra.com/product/pressure/absolute) [Barometric Pressure Sensors](https://www.setra.com/product/pressure/barometric) [Compound Pressure Sensors](https://www.setra.com/product/pressure/compound) [Gauge Pressure Sensors](https://www.setra.com/product/pressure/gauge) [Submersible Pressure Sensors](https://www.setra.com/product/pressure/submersible) [Vacuum Pressure Sensors](https://www.setra.com/product/pressure/vacuum) [UHP Pressure Sensors](https://www.setra.com/product/pressure/uhp) **[Room Pressure Monitors](https://www.setra.com/product/room-pressure-monitors)** **[Pressure Calibrator](https://www.setra.com/product/calibration/microcal-pressure-calibrator)** **[Setra CEMS™ Software](https://www.setra.com/cems)** **[Power Meters & Accessories](https://www.setra.com/product/power-meters)** **[Particle Counters](https://www.setra.com/product/particle-counters)** **[Wireless Solution Systems](https://www.setra.com/wireless)** **[Humidity/Temp Sensors](https://www.setra.com/product/humidity)** **[Dolan-Jenner Fiber Optics](https://dolan-jenner.com)** ![drop-down-pressure](https://www.setra.com/hs-fs/hubfs/angle-arrow-pointing-to-right.png?width=15&name=angle-arrow-pointing-to-right.png) **[Building Automation](https://www.setra.com/building-automation)** [Calibration](https://www.setra.com/building-automation/calibration-equipment) [HVAC/R OEM](https://www.setra.com/building-automation/hvac-r-oem-applications) [HVAC/R](https://www.setra.com/building-automation/hvac-applications) **[Cleanrooms](https://www.setra.com/critical-environments)** **[Healthcare](https://www.setra.com/critical-environments/healthcare)** ![drop-down-pressure](https://www.setra.com/hs-fs/hubfs/angle-arrow-pointing-to-right.png?width=15&name=angle-arrow-pointing-to-right.png) **[General Industrial](https://www.setra.com/industrial)** [Alternative Fuels](https://www.setra.com/general-industrial/vacuum-pressure-in-alternative-fuels) [Barometric](https://www.setra.com/general-industrial/barometric-pressure-measurement-tools) [Data Centers](https://www.setra.com/applications/data-centers/pressure-sensors) [General Industrial OEM](https://www.setra.com/quality-approved-general-industrial-oem-solutions-setra-systems) [HVAC/R OEM](https://www.setra.com/building-automation/hvac-r-oem-applications) [Medical](https://www.setra.com/applications/medical-devices/pressure-sensors) [Off-Highway Vehicles](https://www.setra.com/general-industrial/pressure-transducers-for-off-highway-vehicles) [Oil & Gas](https://www.setra.com/general-industrial/oil-and-gas-pressure-measurement) [Process / MFG Tank Level](https://www.setra.com/general-industrial/liquid-level-sensors) [Test & Measurement](https://www.setra.com/general-industrial/pressure-test-and-measurement) [Water & Wastewater](https://www.setra.com/general-industrial/liquid-level-sensors-for-water-processing) **[Semiconductor Manufacturing](https://www.setra.com/semiconductor-manufacturing-pressure-measurement)** **[Data Centers](https://www.setra.com/applications/data-centers)** **[Energy Management](https://www.setra.com/energy-management)** **[Fiber Optics](https://www.setra.com/fiber-optic-illuminators)** **[Scales](https://www.setra.com/counting-scales-and-laboratory-balances)** [![setra-nav-logo.png](https://www.setra.com/hs-fs/hubfs/setra-nav-logo.png?width=133&name=setra-nav-logo.png "setra-nav-logo.png")](https://www.setra.com/) ![Menu](https://www.setra.com/hs-fs/hubfs/moble-icon.jpg?width=30&name=moble-icon.jpg) × [Home](https://www.setra.com) Markets > [Healthcare](https://www.setra.com/critical-environments/healthcare) [Building Automation](https://www.setra.com/building-automation) [Cleanrooms](https://www.setra.com/critical-environments) [General Industrial](https://www.setra.com/industrial) [Semiconductor Manufacturing](https://www.setra.com/semiconductor-manufacturing-pressure-measurement) [Data Centers](https://www.setra.com/applications/data-centers?hsLang=en) [Energy Management](https://www.setra.com/energy-management) [Fiber Optics](https://www.setra.com/fiber-optic-illuminators) [Scales](https://www.setra.com/counting-scales-and-laboratory-balances) Products > [Pressure Sensors](https://www.setra.com/product/pressure) [Room Pressure Monitors](https://www.setra.com/product/room-pressure-monitors) [Particle Counters](https://www.setra.com/product/particle-counters) [Setra CEMS™ Software](https://www.setra.com/cems) [Power Meter & Accessories](https://www.setra.com/product/power-meters) [Pressure Calibrator](https://www.setra.com/product/calibration/microcal-pressure-calibrator) [Wireless Solutions Systems](https://www.setra.com/wireless) [Humidity/Temp Sensors](https://www.setra.com/product/humidity) [Dolan-Jener](https://dolan-jenner.com/) [OEM Solutions](https://www.setra.com/custom-solutions) Resources > [Blog](https://www.setra.com/blog) [Videos](https://www.setra.com/video-resources) [FAQs](https://article.setra.com/) [Compliance](https://article.setra.com/compliance-documents) [Supplier](https://www.setra.com/support/supplier) [Current Customers](https://www.setra.com/support/customer) [Order Online](https://ecatalog.setra.com) Returns > [Services & Calibration](https://www.setra.com/support/service) [New and Unused for Credit](https://www.setra.com/product-return) [Contact Us](https://www.setra.com/help-center) [Products](https://www.setra.com/products) > [Category](https://www.setra.com/category) > [Subcategory](https://www.setra.com/subcategory) > [Model 201 | Very Low Differential Pressure Transducer](https://www.setra.com/products/pressure/model-201-differential-pressure-transducer) # Model 201 ![201](https://www.setra.com/hs-fs/hubfs/Resized_Product_Images/Model_201_NB.jpg?width=244&name=Model_201_NB.jpg "201") ## Very Low Differential & Gauge Pressure Transducer [CONFIGURE ](http://ecatalog.setra.com/ecatalog/configurators/201) [![I'd Like to be Contacted](https://no-cache.hubspot.com/cta/default/211498/aa2007b8-eb62-4d10-ac93-edd9ce150b9a.png)](https://cta-redirect.hubspot.com/cta/redirect/211498/aa2007b8-eb62-4d10-ac93-edd9ce150b9a) [![I'd Like to be Contacted](https://no-cache.hubspot.com/cta/default/211498/aa2007b8-eb62-4d10-ac93-edd9ce150b9a.png)](https://cta-redirect.hubspot.com/cta/redirect/211498/aa2007b8-eb62-4d10-ac93-edd9ce150b9a) [![](https://www.setra.com/hubfs/product-download-icon.png) ### Data Sheet ](https://www.setra.com/hubfs/Product_Data_Sheets/Setra_Model_201_Data_Sheet.pdf) [![](https://www.setra.com/hubfs/product-download-icon.png) ### Operating Instructions ](https://www.setra.com/hubfs/Product_Operating_Instructions/Setra_Model_201_Operating_Instructions.pdf) ### Product Overview Setra’s Model 201 is an accurate, low cost pressure transducer for measuring very low differential of gauge pressure. The 201’s all-welded no o-ring construction results in a leak-free design, idea for the most critical low range applications. The 201 process connection is designed to be used with pressure media compatible with stainless steel and 600 Series Inconel. Setra’s patented variable capacitance sensor design combines the ultimate in simplicity, with high accuracy and superior thermal stability. It features an Inconel diaphragm and an insulated electrode. As pressure increases or decreases, the capacitance changes. This change in capacitance is detected and converted to a fully conditioned linear current output signal. Its rugged design, 45 PSI high overpressure capability, and wide operating temperature make the Model 201 ideal for the most demanding applications.** ![Prop 65 Notice](https://www.setra.com/hs-fs/hubfs/prop65.png?width=45&name=prop65.png) ***WARNING:** This product can expose you to chemicals including Lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm (For more information go to [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov)) **NOTICE:** Lead is encapsulated in the sensor glass housed inside the product.*** ### Product Specifications - Low FS Range - All-Welded Construction - No O-Rings - Wide Compensated Operating Temperature - High Overpressure of 45 PSI - Gauge and Differential Pressure Measurements ### Downloads [Model 201 Data Sheet](https://www.setra.com/hubfs/Product_Data_Sheets/Setra_Model_201_Data_Sheet.pdf) [Model 201 Operating Instructions](https://www.setra.com/hubfs/Product_Operating_Instructions/Setra_Model_201_Operating_Instructions.pdf) ## Related Products [ ### Model 209 ](https://www.setra.com/products/pressure/model-209-gauge-pressure-transducer) [ ### Model 206 ](https://www.setra.com/products/pressure/model-206-industrial-pressure-transducer) [ ### Model 256 ](https://www.setra.com/products/pressure/model-256-gauge-pressure-transducer) ![recent-blog-image.jpg](https://www.setra.com/hs-fs/hub/211498/file-2669502567.jpg?width=1920&name=file-2669502567.jpg "recent-blog-image.jpg") ## Featured Downloads [![HVAC Product Catalog This comprehensive HVAC Product Catalog is now available online. Click to download the PDF. Download](https://no-cache.hubspot.com/cta/default/211498/0f7226d5-7c20-442d-9373-06ff8eb7de99.png)](https://cta-redirect.hubspot.com/cta/redirect/211498/0f7226d5-7c20-442d-9373-06ff8eb7de99) [![Industrial Product Selection Guide This comprehensive Industrial Sensing Product Selection Guide is now available online. Click to download the PDF. Download](https://no-cache.hubspot.com/cta/default/211498/da9fad78-d798-4a49-98e0-352ad3a7679d.png)](https://cta-redirect.hubspot.com/cta/redirect/211498/da9fad78-d798-4a49-98e0-352ad3a7679d) - [**](https://www.facebook.com/SetraSystems) - [**](https://twitter.com/setrasystems) - [**](https://www.youtube.com/user/SetraSystems) - [**](https://www.linkedin.com/company/setra-systems) - [**](https://www.instagram.com/setrasystemsinc/) [Service & Calibration](https://www.setra.com/support/service) | [Products](https://www.setra.com/products) | [Service/RMA](https://www.setra.com/support/service) | [Supplier](https://www.setra.com/support/supplier) | [Customer](https://www.setra.com/support/customer) | [Contact Us](https://www.setra.com/contact-us) | [FAQs](https://faq.setra.com) | [About](https://www.setra.com/about) | [Careers](https://careers.fortive.com/gems-setra/) | [Request Quote](https://www.setra.com/request-a-quote) | [Blog](https://www.setra.com/blog) Cookie Settings 159 Swanson Road Boxborough, MA 01719 | [orders@setra.com](mailto:orders@setra.com) [+1 (978) 263-1400 ](tel:+19782631400) Copyright © 2026 Setra Systems. All Rights Reserved. | [Terms & Conditions](https://www.setra.com/terms-and-conditions) | [Privacy Notice](https://www.setra.com/privacy-policy) | [ISO 9001:2015 Certified | ](https://www.setra.com/hubfs/ISO%20Setra%20LLC%202025.pdf)[Prop 65](https://www.setra.com/prop65) | [Patents](https://www.setra.com/patents) | [Cookies](https://www.setra.com/cookies) [![Setra Systems Logo](https://www.setra.com/hs-fs/hubfs/setra-systems-logo_white-1.png?width=100&name=setra-systems-logo_white-1.png)](https://www.setra.com/)[![Ralliant logo](https://www.setra.com/hs-fs/hubfs/Ralliant_Logo_SingleColor_White_RGB.png?width=125&name=Ralliant_Logo_SingleColor_White_RGB.png "Setra Systems is a Ralliant Company")](https://www.ralliant.com/)