http://www.amazon.com/gp/aw/d/B000ARU9PO?cache=b13a50eab5e12b5fe0e7396d2b86eed1#ref=pd_aw_sbs_hi_6
http://www.amazon.com/gp/aw/d/B000BRC2XU?cache=b13a50eab5e12b5fe0e7396d2b86eed1#ref=pd_aw_sbs_hi_2
These are both good the analog one is s bit cheaper bit I think is a solid kit, keeps consistent temp very well and heats up extremely quick... 500degrees in about 20 seconds from dead cold