I'm making a home made incubator.I have everything i need except for a computer fan waiting on my BIL to get me one he works on computers.Any way i bought my hot water heater thermostat at lowes.I got the single unit one. They also had top and bottom ones.The one i got looks bigger than some of the ones on here in the home made incubator section.Didnt know which one to get.The temp ranges from 90-150 degrees.It has 4 areas to screw wires to.Did i get the right one?Will this one work? Its a 6 pole thermostat with high limit 120-480 volt. Can any of you please help me!!Thank You in advance.My bator is gonna be a old plastic igloo cooler if that matters.