Engineered to work with AC-LVDTs, RVDTs, and inductive half-bridge sensors including 3-wire GE LVRTs and GE gas turbine LVDTs with buck-boost, Model S1A features built-in null indication and front panel pushbuttons to set zero and full scale. Internal microprocessor eliminates need to calculate jumper connections for gain and range. Equipped with color-coded plug-in connections, DIN rail module offers 4 excitation frequencies, 8 analog DC outputs, and RS-485 digital communications.