-Used in four channels -Need no PLC -High integration sysytem -Single,double or three-speed charging. Detailed Product Description-Require no PLC -Simple-Chip access -High integration access -Effective division:>3000 Main qualities:•static accuracy:above 3000(effective division)•dynamic accuracy:±0.2%,0.5%,1.0%•Adopt 7 figures and display 10LED,intuitive and convenient ways,ease in adjustment and ...