The YTA320 are the highly accuratetemperature transmitters that accept Thermocouple,RTD, ohms or DC milivolts inputs and converts it to a 4 to 20 mA DC signal for transmission. The YTA310 is a single sensor input model, and the YTA320 is a dual input model. Both models support either BRAIN or HART® communication protocol, and YTA320 also supports FOUNDATION fieldbusTM