This is a digital panel meter corresponding to mini graph panel and 15mm mosaic panel. 
General DC input can be digitally displayed in any 2 to 4 digits by scaling according to specification. 
Also polarity display/decimal point display/OR display/UR display can be specified.
Change of scaling setting and other settings is possible w/ communicator(CM-1: selling separately).
Unexpected setting change at installation site is possible.
This product can be used widely for measuring of various plants.