MFG is divided into 21XX and 22XX two series of 10
models. It has mainly 4 different output channels CH1/
CH2/ Pulse/ RF to collocate with, CH1/ Pulse is
standard configuration and CH2/ RF is optional. The
display position for CH1 is fixed and the display
position for Pulse changes depending on if the the CH2
available.
In order to effectively distinguish various channels, we
assign different color to each channel respectively.