For industrial or commercial applications, the Round style panel meter offers maximum reliability and ±2% full scale (F.S.) accuracy. With a black phenolic case and glass window for optimum viewing, the Round style meter is a popular replacement. All DC units have pivot and jewel suspensions that are spring-loaded for shock protection. The selfshielded meter movement prevents magnetic interaction between the meter and a steel panel. Two popular sizes of 2-1/2" and 3-1/2" are available to measure various voltage ranges up to 5000 volts with multiplier. High voltage ranges are furnished with external multipliers. This style meter is ideal for many other electrical functions.