Features: Accurately monitor charging safety with the KWS2302C Phone Charging Current Detector, featuring ±0.001A precise and real time voltages/current trackings for optimized device protections. builts with durability aluminum , this 10g portable usb c tester integrates a large LCD screen for instantly data visualization and plugs and play operation. It is fully compatible for fast-trackings protocols, supporting PD2.0,PD3.0,QC2.0,QC3.0,and other protocols. Ideal for professional and frequent traveler who prioritize charging efficiency across smartphones, tablets, and usb c power gadgets. Effortlessly verifys charging performances during business trip or daily commutes while preventing overcharging risks in homes/office environment. Specifications: Component:Aluminum Size:Approx.5x1.8x0.9cm/1.97x0.71x0.35inch Testing Ranges:4-30V/0-12A/0-360W Support PD2.0,PD3.0,QC2.0,QC3.0; Practicality: It is suitable for charging status detection of mobile phones, tablets and other devices, supports multiple charging protocol identification, helping users understand charging efficiency and safety. Package Includes: 1pc Voltages Meter note: Please allow 1-10mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.