10.2 volts with the tempo sensor grounded (should have thought of that) and buzzer works. Apparently when lanyard not connected both wires to the buzzer go to ground. Buzzer only works one way, I had tested continuity to ground when I hooked up buzzer the first time, I guess when I got continuity on the first wire I assumed that was the ground wire and hooked up the buzzer backward. I can still only measure about 1 volt when lanyard attached but I guess that is just a function of the meter measuring the brief current. But buzzer now works. Thanks