DC Voltage and Current Meters90° scale arcAccuracy class 1.5, BS89 and IEC51Flame retardant case to UL94V0Fitted with mounting bracketsOperating temperature range -25 - +40°CTerminal covers available separately48x48mm ammeters have integral scales, appropriate scales must be chosen and ordered separately for the 72x72 & 96x96mm ammetersNoteAll ammeters are shunt operated and an appropriate 75mV shunt (no. 257-307 typically) must be ordered separately for each meter, the meters cannot be used without them