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The LFS-03 can be used to detect positive or negative pressure. It can be used as a gauge or differential pressure switch with almost no hysteresis. If two switch points are required, two pressure switches with different calibrations should be employed. The method of fixing the tab terminals to the switch body does not allow for absolute air sealing. The switch is therefore not recommended for applications where static vacuum must be maintained. However, special models with an additional pressure spring which allows for the vacuum to be connected to the pressure inlet side are available upon request.
 
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