I have been searching for an alternate to SPA gauges and came across these. They are Redline gayges and they can controller up to 4 thermocouple(sp?) Here is an link. The are cheaper too.
http://redlinegauges.com/product_in...=31&dfwtekid=107ee0fc89bd95012238d470219b8e10
http://redlinegauges.com/product_in...=31&dfwtekid=107ee0fc89bd95012238d470219b8e10