Has anybody came off the #1 and #2 connections to an oil or gas boiler to an alarm such as a bell or something to sound if your fuel light came on? Are these terminals N/O or do they have 12 volts or is that the UM-1 module that is 12 volt? If it's a N/O then you could hook up an alarm or bell to ring if your fuel light comes on. Just wondering if anyone has done this.