Setra's Model 269 transducer is the highest accuracy solution for monitoring differential pressure in critical environments. Its 0.25% 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". The 269's calibration is tamper proof by utilizing a removable process head that eliminates inadvertent adjustments while allowing in-situ calibrations without removing the process tubing. Calibrations can be performed automatically when performed with Setra's MicroCal outfitted with an expert system. The 269 offers multiple mounting configurations, including DINrail, for quicker and easier installation.