Thank you for the add ;...I have a AUBER syl-2362A2 PID ,I have calibrated the pt100Mn and is point 6/7 of a degree out ,how do I input a negative point 6 (of a Degree Centigrade) every way I do it gives it a + influence ....Second Question I have ; the SV is set To 36.9 C but it will not turn off ,even in auto tune it just keeps on heating ,I am using it in an Egg incubator with light bulbs as a heat source and they never dim nor turn off ,at the moment it is on 44.1 C and still rising ,how do I get it to turn off and back on ? many thanks in advance for any help for a total PID novice and best regards Jonny