Bright, 4-digit display; Fully configurable from front keys: alarm set points & delay, range, hysteresis, calibration); Input types (factory set): 4 ? 20 mA dc or user specified Vdc/RTD/Thermocouple; Non volatile RAM for storing calibration & configuration data; Two potential free relay outputs; Analogue retransmission isolated output; Variable, user set hysteresis (dead band); Internal 24VDC to power two wire transmitters; Software calibration, user accessible; Available in two front sizes: square 96 x 96, slim 96 x 48. Specifications: Input Types Factory set 4 ? 20 mA DC/ 0 ? 20 mADC/RTD/mV/Thermocouple; Impedance 100 Ohms for current inputs. Display: Range 0 ? 100% of span, units as specified; Accuracy +/- .25% of span; Resolution 4 digits; Type Bright, 7-segment LED, red. Output: Analogue 4 ? 20 mA DC, isolated Accuracy +/- .25% of span; Load up to 750 Ohms; Transmitter 24VDC, 25mA for current inputs. Alarms two set points contact rating 230V AC, 5 A, potential free. Power: 230VAC +/- 10%, 50Hz, (Optional 110 VAC) Consumption < 3VA. Environmental Temperature operating: 0 ? 50 ˚ C; Storage 0 ? 70 ˚ C; Humidity 90% RH, NC. Mechanical: Dimensions 96 x 96 x 84 mm; Weight 540 gm