50-0-50 Amp DC Analog Panel Meter, 2 InchProduct Details:Linear Scale 50 – 0 – 50 Amp DC with 2 Amp DivisionsShunt Required (NOT Included)Movement: 50 mVMeters Reads Both Charge – Discharge CurrentSeparate 12 Volt DC Backlight ConnectionsMeter Input: Screw TerminalsPanel Cutout Dimensions: 1.81″Dimensions: ~2.06″ (W) x 2.06″ (H) x Overall Depth: 2″Mounting Studs are 1.5″ Center to CenterBocatech, IncBTMT-50-50A EL