--- title: Model ASL - High Accuracy, Low Differential Pressure Transducer | Setra Systems --- ** ** ** - 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 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Unused for Credit](https://www.setra.com/product-return) [Contact Us](https://www.setra.com/help-center) [Products](https://www.setra.com/products#all) > [Pressure](https://www.setra.com/products#pressure) > [Differential](https://www.setra.com/products#pressure.differential) Model ASL Pressure Transducer - ![Model ASL](https://www.setra.com/hubfs/Model%20ASL%20-%20Angle%20-%20800x800%20-%20WEB.png "Model ASL") **High Accuracy Low Differential Pressure Transducer** Setra’s Model ASL is the highest accuracy transducer for measuring low differential pressure in the AccuSense™ product line. Its ±0.07% FS accuracy is calibrated using the “End Point Method” which improves linearity when compared to competitive transducers, which use the “Best Fit Straight Line Method” of calibration. ![Setra ASL Pressure Transducer featured badges.](https://www.setra.com/hs-fs/hubfs/setra-model-asl-badges.png?width=340&name=setra-model-asl-badges.png "Power Battalion 48 featured badges.") [Download Data Sheet](https://www.setra.com/hubfs/Product_Data_Sheets/Setra_Model_ASL_Data_Sheet.pdf) [Operating Instructions](https://www.setra.com/hubfs/Product_Operating_Instructions/Setra_Model_ASL_Operating_Instructions.pdf) [**CONFIGURE >**](https://ecatalog.setra.com/ecatalog/configurators/asl) [**Request Quote >**](https://www.setra.com/request-a-quote?product_availability_interest=Model+ASL&description=Please+send+me+a+quote+for+the+Model+ASL) Product description Setra’s Model ASL is the highest accuracy transducer for measuring low differential pressure in the AccuSense™ product line. Its ±0.07% FS accuracy is calibrated using the “End Point Method” which improves linearity when compared to competitive transducers, which use the “Best Fit Straight Line Method” of calibration. The ASL’s calibration is tamper proof by utilizing a SecureCal™ calibration key which eliminates inadvertent adjustments, while allowing authorized users to adjust the sensor’s calibration coefficients for a true sensor calibration. The design of the ASL offers class leading overpressure capability and multiple pressure and electrical fittings to accommodate a wide range of applications. **High Accuracy for Demanding Applications** - The Model ASL differential pressure transducer uses a resonant variable capacitance sensor. This sensor is linearized and thermally compensated through a computerized curve fitting algorithm that optimizes the sensor’s linearity for maximum accuracy in demanding applications. **Robust Design & Construction for Reliable Service** - The Model ASL is designed and built to withstand demanding applications. The laser welded sensor construction, designed with positive and negative overpressure stops, enables the sensor to resist overpressure conditions up to100X in all pressure ranges. **Secure and Fast Calibration & Service** - The Model ASL is ideal for the Test & Measurement industry because it adheres to the stringent accuracy requirements. In order to make adjustments, the ASL utilizes the Secure-Cal™ calibration key, providing secure calibration. The SecureCal™ provides the ability to calibrate zero and span coefficients through a simple push button and rotary adjustment dial. The SecureCal™ also offers the option to restore factory defaults for fail-safe sensor calibration. Docs & Downloads [Model ASL Data Sheet](https://www.setra.com/hubfs/Product_Data_Sheets/Setra_Model_ASL_Data_Sheet.pdf) [Model ASL Operating Instructions](https://www.setra.com/hubfs/Product_Operating_Instructions/Setra_Model_ASL_Operating_Instructions.pdf) [Model ASL Case Study: Leak Detection Systems](https://www.setra.com/hs-fs/hub/211498/file-1630064428.pdf) [Model Asl Case Study: Rail Air Brake Testing Equipment](https://www.setra.com/hs-fs/hub/211498/file-2484508404.pdf) Features & Benefits - High Accuracy: ±0.07% FS - End Point Method Linearity - High Overpressure Capability: >100X Range - Low Thermal Error - Excellent Stability: <0.15% FS/YR - Calibrate Using SecureCal™ Calibration Key - High Line Pressure Capability - Unidirectional & Bidirectional Models Available Applications - Filter pressure - Leak detection systems - Exhaust pressure - Medical instrumentation - Part integrity testing - Test stands - Wind tunnels - Industrial high accuracy ![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.*** Related Products ## Model ASM ![model_asm-thumb.jpg](https://www.setra.com/hs-fs/hubfs/model_asm-thumb.jpg?width=250&name=model_asm-thumb.jpg "model_asm-thumb.jpg") [VIEW PRODUCT](https://www.setra.com/products/pressure/model-asm-high-accuracy-pressure-transducer) ## Model 239 ![Model_239_NB.jpg](https://www.setra.com/hs-fs/hubfs/Setra_Resized_Product_Images/Model_239_NB.jpg?width=250&name=Model_239_NB.jpg "Model_239_NB.jpg") [VIEW PRODUCT](https://www.setra.com/products/pressure/model-239-high-accuracy-pressure-transducer) ## Model 264 ![Model_264_NB.jpg](https://www.setra.com/hs-fs/hubfs/Setra_Resized_Product_Images/Model_264_NB.jpg?width=250&name=Model_264_NB.jpg "Model_264_NB.jpg") [VIEW PRODUCT](https://www.setra.com/products/pressure/model-264-low-differential-pressure-transducer) - [**](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. 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