Using this Kit you can control 8 devices. The kit is connected to the serial port of your computer and defines when will turn on or off each one of the 8 devices. For example you can turn on/off the lights, the air conditioning or the alarm at the desired time. There are 3 options - manual, periodic, automatic - for the handling of the Kit. Power handling up to 500 /channel. The software is also included in the same package.