The signal wire is just a stiff bell wire used on phone boxes and thermostats for the home. Any hardware or home store should have this wire. It will come cased with multiple wires. Just cut casing and pull out a strand. It has to be the stiff wire so as to wrap the coil lead wire.
Last edited by SYCARMS; 12-19-2014 at 11:57 AM.
Reason: spelling
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