Fangrui Product Details 1.13 In 1 Current, Voltage, Power, Electrical Energy, Capacity, Timing ,brightness Adjustment, Screen Shutdown Interface, Current Direction,maximum Voltage, Maximum Current, Maximum Power Recording And Other Quick Identification And Other Parameters, One Screen Display Multiple Parameters. 2.adopt 0.85 Inch Oled Hd Display, Make Your Vision Brighter At A Glance, With 12a High Current Terminal, Make The Product More Stable. 3.aluminum Alloy Shell Dustproof And Drop-proof, Two Kinds Of Display Page, More Convenient To Watch, So That The Function Is More Strengthened. 4.full Interface Compatibility, Two-way Current Test Function, Real-time Charging Power Detection, Support Fast Charging Test. 5.you Can Detect The Charging Status Of The Electrical Appliances In Real Time, Real-time Monitoring Of The Charging Voltage And Current And Other Parameters Of Information At A Glance. 6.supports Pd2.0, Pd3.0, Pd3.1, , Qc2.0, Qc3.0, Fcp,scp,afc, Pe, Dash,vooc Power On Testing Of Almost All Protocols Such As Supervooc