Features Measuring input type : DC current / DC voltage Multiple output type : RELAY / RS-485 (Option) Filtering function, provide safe and stable measuring Power supply : AC 90 … 250 V / 50 … 60 Hz, DC 24 V±10% Auxiliary supply output (DC 18 … 26 V / 50 mA), use for 2-wire transmitter Panel installation, high light red LED display panel, 14.1 mm height of character, 4 digits(-1999 … +9999), 7-segment display Programmable, high safety & stability, fire-proof case, moisture-proof cover Plug-in installation design for easy maintenance