







⚡ Power up your tech IQ with FNIRSI’s ultimate USB tester — don’t get left behind!
The FNIRSI USB Tester FNB58 is a cutting-edge, multi-interface USB voltage and current meter featuring a 2.0-inch full-color TFT display, 16-bit ADC precision, and comprehensive fast charge protocol detection including PD and QC standards. Designed for professionals and tech enthusiasts, it offers real-time monitoring, advanced data logging, and compatibility with USB-A, Micro-USB, and Type-C devices, making it an indispensable tool for accurate power diagnostics and fast charging validation.











| Manufacturer | FNIRSI |
| Part number | FNIRSI-001 |
| Item Weight | 45.4 g |
| Package Dimensions | 11.5 x 8.5 x 2.4 cm; 45.36 g |
| Item model number | FNIRSI-001 |
| Colour | multi-color |
| Style | Modern |
| Power source type | Corded Electric |
| Item Package Quantity | 1 |
| Measurement Accuracy | ±0.5‰ |
| Included components | USB Tester |
| Batteries included? | No |
| Batteries Required? | No |
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