High-Precision USB Tester FNIRSI C1 – Fast Charging Protocol Analyzer

Automated Trigger & Multi-Protocol Detection
Supports PD, QC, AFC, FCP, SCP, and more for seamless compatibility with all fast-charging devices.
Ultra-Compact & Durable Design
Premium ABS shell with reinforced PCB board ensures shock resistance and long-term reliability.
Real-Time Voltage/Current Monitoring
Precision sensors display live data (0-30V/0-5A) with ±1% accuracy for optimal charging safety.
Plug-and-Play Operation
No Bluetooth or app required—direct USB-C input/output for instant on-the-go diagnostics.
Wide Application Scenarios
Ideal for engineers, DIY enthusiasts, and daily users to verify charger performance, cable quality, or power bank output.
Exclusive Bulk Pricing
Global wholesale rates with unmatched discounts for bulk orders—lowest price guaranteed.