0 – 50 Amp DC Analog Panel Meter, 2.27 InchProduct Details:0-50 Amp DC Non-Linear Scale with 2 Amp Divisions50 Amp / 50 mV Shunt Required (NOT Included)Meter Input: Screw TerminalsNon-Linear ScaleScale Arc: 100 DegreeAccuracy: Plus or Minus 2% Full ScalePanel Meter Movement Cutout ~ 1.13″ x 0.72″ (See Image 2)Dimensions: ~2.27″ (W) x 1.77″ (H) x Overall Depth: 1.3″Mounting Studs are 1.5″ Center to CenterBocatech, IncBTMM1-50ADC