hello im installing a condensate pump it has two wires that can be connected to an alarm in the event the unit stops working. The pump fills with water and activates a high level float swirch. I have no idea what sort of alarm i need to use with the pump. I presume the wires cut supply so the alarm must have its own power but accept the 2 pump wires as sensor inputs. does anyone have any suggestion what alarm would be suitable?