<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px"><div dir="ltr" id="yui_3_16_0_1_1436877118891_637371">>I am with Rodney on the opto-isolation relay board as the best solution.<span></span></div><div dir="ltr" id="yui_3_16_0_1_1436877118891_637371"><br></div><div dir="ltr" id="yui_3_16_0_1_1436877118891_637371">Small change: Opto-isolated triacs or the opto-isolated relay board. Kind of a toss up, I would probably break the tie on cost or convenience of the choices.</div> <br><div class="qtdSeparateBR" id="yui_3_16_0_1_1436877118891_643399">John Vaughters</div></div></body></html>