--- title: Model 256 | Gauge Pressure Sensor description: Setra's Model 256 high pressure sensor offers high accuracy, wide operating temperature range & is compatible with wide range of corrosive liquids and gases. image: https://www.setra.com/hubfs/Resized_Product_Images/Model_256_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 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Specifically designed for NEMA4/IP65 service the 256 is packaged in a die-cast aluminum enclosure and includes Setra’s robust capacitive design, making it resistant to environmental effects such as shock, vibration, temperature and EMI/RFI. Available in a wide variety of gauge pressure ranges, the 256 features adjustable potentiometers for zero and span settings. Only 3.6” high x 4.0” wide, the Model 256 is designed for compact installations. The removable cover provides easy access to the internal terminal strip for wiring. Installation is quick and easy with 1/2 inch internal threaded conduit ports for electrical termination. ![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 Cost - High Accuracy - NEMA-4/IP65 - Wide Operating Temperature Range - Compatible with a Wide Range of Gases or Liquids - Corrosive Resistant All Stainless Steel Wetted Parts - Choice of Voltage or Current Output - Operates on Low Cost Unregulated Power Supply ### Downloads [Model 256 Data Sheet](https://www.setra.com/hubfs/Product_Data_Sheets/Setra_Model_256_Data_Sheet.pdf) [Model 256 Operating Instructions](https://www.setra.com/hubfs/Product_Operating_Instructions/Setra_Model_256_Operating_Instructions.pdf) ## Related Products [ ### Model 204 ](https://www.setra.com/products/pressure/model-204-absolute-pressure-transducer) [ ### Model 206 ](https://www.setra.com/products/pressure/model-206-industrial-pressure-transducer) [ ### Model ASM ](https://www.setra.com/products/pressure/model-ASM-high-accuracy-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. 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