8 – 16 Volt DC Analog Panel Meter, 2.5 InchProduct Details:Direct Read, 12 Volt DC Battery Monitor MeterRange: 8-16 Volt DC with 200 mV DivisionsMeter Input: Screw TerminalsLinear ScaleScale Arc: 90 DegreeAccuracy: Plus or Minus 2% Full ScalePanel Meter Mounts in ~2.1″ Diameter Cut-Out.Dimensions: ~2.83″ (W) x 2.44″ (H) x Overall Depth: 2.2″Mounting Studs are 1.875″ Center to CenterBocatech, IncBT2WDCJ8-16