KWS1902C USB C bidirectional tester 4bit precision for readings with voltage 430V, current 05A, and power 0150W; resolution 0.002A. 0.96inch IPS color LCD with a 160degree viewing angle; displays charging status, voltage, current, and power in clear colors for easy reading from most angles. Multiprotocol compatibility: supports QC2.0, QC3.0, and PD; compatible with mainstream TypeC devices; realtime monitoring of charging status across a wide range of products. Poweroff data storage: automatically saves capacity and energy data when disconnected; enables later review and analysis for longterm power consumption studies and battery performance evaluations. Use scenarios: test and compare chargers and cables; monitor realtime power draw of USBC devices during charging; perform longterm power consumption and battery performance studies with stored data. Ideal for electronics enthusiasts and professionals who need precise measurements for charging and power consumption analysis.