... temperature controller 1.multiple input specification available 2.high accuracy 3.85~265VAC 4.PID auto-tune TREX-C100 temperature ... .. Various alarm mode combination. Input/output are separated from each other. PID ... SMPS power supply, with strong resistance to interference.Technical parameters :ModelTERX-C100External W ... Cu50;Linear signal: 0~20mv,0~60mv,0~100mv,0~500mv,0~5V,1~5V,0~10V,0-10mA,4-20mA etc ...