Cebek USB.CD-70 module is a 4-digit Cebek USB interface is an electronic circuit designed to be connected to a USB port on your computer, allowing you to remotely control the various functions such as start / stop, the scale of work, and the password reset . The interface has some tickets for the manual control circuit. You can count up and count down from a DC voltage derived from a contact on the signal input. Count up function allows you to pre-select a number and once this number reach, the count up will be stopped and the relay is activated.