C-Ton Industries has many different styles and colors of loop powered indicators with both 3.5 and 4.5 digit resolution. Loop powered LCD panel meters enable the user to monitor specific process controls without an additional power source. C-Ton’s loop powered meters typically use only 5.5 volts DC from the 4-20 mA loop. This allows the usage of several displays or controllers in the same loop. With both zero and span potentiometers on the interface board, an end user can set the readings from negative 1999 counts to positive 1999 counts on the 3.5 digit, and 19999 counts on the 4.5 digit versions.