1) PCB board siz: 23179mm;
2) patch procss, LED status display;
3) compact siz, sophisticatd tchnology;
4) instructions: us ULN2003 high powr Darlington chiIntrfac Dscription:VCC and GND powr input is rang from 5 to 24V ;IN1-IN4 corrsponding tst program 51
microcontrollr P0.0-P0.3
2) patch procss, LED status display;
3) compact siz, sophisticatd tchnology;
4) instructions: us ULN2003 high powr Darlington chiIntrfac Dscription:VCC and GND powr input is rang from 5 to 24V ;IN1-IN4 corrsponding tst program 51
microcontrollr P0.0-P0.3
