TM Series thumb switch setting temperature controller Features： 3 digit LED display Thrumb switch setting, PID temperature control Input: TC/RTD Multi-output control option:relay; SSR;SCR;analog current 4-20mA or voultage:0-10V 1 loop auxiliary output power:110/220V +/-15% AC Optional sizes: 4:48H*48W*100L MM 6:96H*48W*100L MM 7:72H*72W*100L MM Easy operation, applied in various industries for temperature displaying, alarm and adjusting