• The return value is 2 bytes wide unsigned Methane concentration value, the unit is 1 %, the resolution is 0.001 % (10 ppm), and the range from 0.000 % to 65.534 %. Value 0xFFFF (i.e. 65.535 %) specifies a sensor error.
• FRC 2-byte: FRC return value is the Methane concentration value +4 (i.e. 0x303D = 12349 is 12.345 %). Because of FRC predefined values the raw values from 0xFFFC to 0xFFFF (i.e. 65.532 % to 65.535 %) cannot be passed.