
To keep your UEi DAFM4 Digital Air Flow Meter running continuously, you can disable its auto power-off function. Here's how, as detailed in the user manual: First, make sure the meter is off. Then, press and hold both the ON/OFF button and the HOLD button at the same time for over two seconds. The display will then show an "n" symbol. This indicates that the auto power-off feature has been successfully disabled, and your meter will stay on until you manually turn it off. This is especially useful for extended measurement sessions.


