SFD-300 single channel alarm controller
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SFD-300
Common problem
SFD-300 single channel alarm controller
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The site has no gas leakage, but the display has a reading and is not zero?
8 2016-08-11 13:36:15
Enter the "calibration",then"zero calibration >" click "zero calibration", and later on "calibration" , enter the password "3003" can be preserved