Why not buy a few of these: http://www.ebay.com/itm/Temperature-Controller-K-Type-Thermocouple-Probe-Sensors-100cm-Wire-Cable-1M-GHT-/251766709800?pt=LH_DefaultDomain_2&hash=item3a9e771e28
Won't break the bank and free shipping, i bought similar used the plug and threw the rest away.