Get an ungrounded K type thermocoupler for EGT. Make sure it is ungrounded. I get them at Plastic Process Equipment
http://www.ppe.com/. They cost a whopping $18 the last time Ipurchased from them, but it is not a stock item and will take a couple weeks to get. Call them and make sure you get an ungrounded junction K type. I use this with a Zietronix ZT2 wide band on my Sr20 and am logging EGT's.