How do you hook this thing up exactly? I'm plum out of ideas. There are two wires.

http://www.coolingmist.com/detailmain.aspx?pid=float01

 

use the wires as a ground for an LED. For example, hook an LED up to a power source, connect one of the wires from the float switch to the other end of the LED and ground the other end of the float switch.

This float switch does not float in Methanol. We are about 30 days away from a switch that we are having manufactured that floats in 100% methanol. 50/50 or less this float switch will float.