DC, or direct current, voltage is mostly used to measure batteries. DC voltage is also used in cars and many small electronics. Keithley 195A Digital Multi Meter Multimeter no Options no options are installed. Case has the rear corner broken as shown in photo. In , to allow standard adapters or devices such as voltage multiplier or thermocouple probes to be plugged in.Test the grounding by spanning the gap between the positive terminal and the soil. If the difference between the two readings is…See More