Model TC 172 Input PT 100 / J , R , S , T , B , N , E , K ( programmable Set point Hi Limits) Range PT 100 - (-199.9 to 850.0 °C TC - J (- 200.0 to 200°C ) TC - K (- 200.0 to 1372°C) TC - R (- 40.0 to 1768°C ) TC - S (- 40.0 to 1768°C ) TC - T (- 200.0 to 400°C ) TC - B (300.0 to 1820°C) TC - N (-200.0 to 1300°C) TC - E ( -200.0 to 999.9°C) Control Action Heater, Cooler Control mode ON / OFF Resolution 0.1 / 1 ºC (selectable only for RTD - PT 100) Accuracy ± 0.25 % of FS Display 4 Digit 0.5” RED Seven Segment LED Relay Output * 1 NO , 1 NC 5A Rated Relay SSR Output * 12V DC ± 10% Working temperature 0 - 50 ºC Power Supply 90 to 270V AC / DC 50Hz Over all Dimension 72 x 72 x 65 mm Weight 200 grams (Approx.)ication Cutout Dimension 68 x 68mm.