A Multi-range, Easily-scaled, DC Volts Measuring, AC/DC Powered LED Meter. The meter has three built-in header selectable ranges of 2V, 20V and 200V, with 2V being standard.
It is specifically designed to be easily user-scaled and calibrated to almost any conceivable engineering unit, such as temperature, pressure, viscosity or flow rates, etc., without requiring component changes.