Sensor Indicator Universal input:including TC, RTD, mV, mA, V, 0--5A 2 relay outputs applicate to any non-linearity sensors. ... DS3 series universal Sensor IndicatorFeatures:1, Input: regular: 4-20mA/0-75mV/0-10V, other input selectable by user, eg.AV ... power: +12V or 24V/30mA.4, Single line 4 digits display,range: -1999~9999,floating demical point.5, RS232/485 communication ...