MYBET888 You have just finished wiring the intruder-entry sensor switch loop. If you did it properly, the circuit of the copper-colored wire will go to and through all the switches, and the silver-colored wire will return from the farthest end with no breaks or interruptions. Now it is time to install the battery circuit. Purchase two 6-volt lantern-type batteries or a suitable type of rechargeable battery pack.|By using this Site