Panel Meters and Modbus Display.
Datexel manufactures both LCD and LED loop powered indicators and loop powered displays which are powered from a 4-20mA loop. Datexel was one of the first companies to design and manufacture a loop powered LED panel display, the DAT8050.
The DAT8050 is a fully 4 digit loop powered digital indicator and accepts an input and a power supply from a 4-20 mA current loop signal. The LED digital display can display from -1999 to 9999 digits and the display height is just over 1/2 inch. The front keys allow the user to set up the parameters such as the zero span and the decimal point position.