Output-Input Units: Type - Temperature Controller; Supply Voltage - 24VDC; Number of Inputs - 4; Input Type - (4) Thermocouple; Number of Outputs - 4; Output Types - (4) Relay Outputs; Output Applications - Control and Alarm; Connection - Screw Terminal; Dimensions - WxHxD - 89x90x31 mm (3.50x3.54x1.22 in.); Mounting - Din Rail; Manufacturer Series - CJ