Hi I want to buy a scientific lab temperature controller with inputs for J-type thermocouple and consists of a standard circuitry of a solid state relay,controller,switch - all enclosed and pre-wired in an enclosure(plastic/metal). The purpose is not a hi-fi one so need one for a reasonable price. Could anyone suggest me where I could buy one of those. I could build it but I do not know where to get the enclosure. too. Please suggest.