Detailed Product Description Name: Moving Coil Instruments DC VoltmeterType: SD-96, SD-72, SD-48, SD-80Size(mm): 96X96, 72X72, 48X48, 80X80Accuracy: Class 1.5Specification: 3V 5V 7.5V 10V 15V 20V 30V 50V 75V 100V 120V 150V 200V 250V 300V 400V 500V 600V , Measuring ranges over 450V with external resistor (rated current 5mA)Mounting: SD series is flush mounting with bracket.