... meter Sensor Indicator & Sensor MeterToky SV8 model Sensor Indicator / pressure meter with following features:1) Wide input signal range: ... ouput, or +/-12V (60mA) auxiliary power output (for sensors);5) Some model with retransmit 4-20mA current output, range ... data;8) Usually used with 2-wire transducers, pressure sensors, 4-wire weighting sensors, remote pressure meters, etc. which outputs mA, mV, V ...