Four Channel Relay DIY Electronics Kit

This listing is for a 4-channel relay driver board kit.  Assemble it yourself using the video above.  With this kit, you can control up to 4x circuits in the DC or AC range.   The kit is easy and fun to assemble.   Watch the entire video to see a demonstration as well as a step-by-step assembly procedure!  With a little time, patience, and attention to detail, you can make yourself an awesome relay driver board!  There is a 2-pin power terminal block with labels: (V+ / GND), four input terminals which acts to activate each relay respectively when 5v is applied to the corresponding pin, and four sets of 3-pin terminal blocks (One for each relay).  An on board 5v regulator keeps the circuitry safe.  A 5v signal must be applied to the relative input to activate each relay.

Marking for Relay Outputs:
NC: Normally connected to CO (Common Pin) when relay is inactive.
CO: This common pin connects to the NC pin when the relay is inactive.  When the relay is activated, the CO pin disconnects from the NC pin, and connects to the NO pin.
NO: This Normally Open pin connects to the common pin only when the relay is active.

Size:
Length:  8.8cm
Width:  7.9cm
Height:  1.3cm

Schematic:
http://www.electroniclessons.com/2Relay.pdf 
 
This kit includes:
1) A Custom PCB (Printed circuit board).
2) All of the components required to build the kit.
3) Round the clock access to the instructional video =) 
 
Requirements:
1) Power Supply: 7VDC - 12VDC (regulated to 5VDC on the board)
2) Basic soldering skills.3) Attention to detail.  Some kit assembly experience is helpful.