--- title: Model 278 | Barometric Pressure Transducer description: Setra's Model 278 absolute pressure sensor utilizes Setra’s Setraceram™ capacitive sensor and provides high accuracy, dynamic response & long term stability. image: https://www.setra.com/hubfs/Resized_Product_Images/Model_278_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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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_278_Data_Sheet.pdf) [![](https://www.setra.com/hubfs/product-download-icon.png) ### Operating Instructions ](https://www.setra.com/hubfs/Product_Operating_Instructions/Setra_Model_278_Operating_Instructions.pdf) ### Product Overview Setra’s Model 278 is the ideal solution for measuring barometric pressure for remote environmental applications. The 278 is designed using the SETRACERAM™ ceramic sensor, enabling it to meet stringent accuracy requirements over wide operating temperatures in remote applications. The small footprint and removable terminal block on the 278 makes installation fast and easy. The 278 is ideal for solar powered applications because of its low power consumption and sleep mode feature. Under normal operation, this feature minimizes current draw when readings are not being taken. **Designed for Remote Sensing Applications** - The Model 278 pressure transducer is designed to be used in remote applications that require low power consumption. Its sleep mode feature allows for instant startup and fast readings. **Improved Performance with Ceramic Sensor** - The 278 utilizes a variable capacitance sensor that is made using ceramic material fused together with glass and gold to form the SETRACERAM™ pressure element. This stable material and design offers class leading thermal performance and low hysteresis, allowing it to be integrated into demanding installations. The ceramic sensor enables improved performance compared to other stainless steel sensors, enabling the 278 to give accurate measurements and better test results. **Flexibility in Installation** - The Model 278 is designed with a compact footprint for quick installation. The removable terminal block provides easy wiring. Its mounting holes are designed to fit industry standard grid systems to maximize the use of panel space while minimizing your time at the job site. ![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 - Long-Term Stability: 0.1 hPa/mB Per Year - Sleep Mode for Instant Startup - Removable Terminal Strip Module for Easy Wiring - Footprint Configured for Easy Drop-In Replacement - Calibration NIST Traceable - Wide-Operating Voltage 9.5 to 28 VDC ### Downloads [Model 278 Data Sheet](https://www.setra.com/hubfs/Product_Data_Sheets/Setra_Model_278_Data_Sheet.pdf) [Model 278 Operating Instructions](https://www.setra.com/hubfs/Product_Operating_Instructions/Setra_Model_278_Operating_Instructions.pdf) [Model 278 Case Study: Automated Weather Station](https://www.setra.com/hubfs/278_Automated_Weather_Station.pdf) ## Related Products [ ### Model 270 ](https://www.setra.com/products/pressure/model-270-setraceram-gauge-pressure-transducer) [ ### Model 276 ](https://www.setra.com/products/pressure/model-276-low-cost-pressure-transducer) [ ### Model 470 ](https://www.setra.com/products/pressure/model-470-digital-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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