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โก Power up your tech IQ with precision and speed!
The FNIRSI FNB58 USB Tester is a professional-grade, 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. It supports detailed power, capacity, and ripple measurements with advanced cable diagnostics, making it an essential tool for tech-savvy professionals and managers who demand accuracy and efficiency in monitoring USB-powered devices.





























| ASIN | B0BJ253W31 |
| Best Sellers Rank | #80,110 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #378 in Multi Testers |
| Brand | FNIRSI |
| Brand Name | FNIRSI |
| Color | black |
| Colour | black |
| Compatible Devices | Mobile phones, chargers, USB drives, mobile power supplies |
| Customer Reviews | 4.4 out of 5 stars 694 Reviews |
| Included Components | USB Tester |
| Item Weight | 45 g |
| Item weight | 45 g |
| Manufacturer | FNIRSI |
| Maximum Operating Voltage | 28 Volts |
| Measurement Type | Voltage, Current, Fast Charge Detection, Etc |
| Min. Operating voltage | 4 Volts |
| Minimum Operating Voltage | 4 Volts |
| Model | FNIRSI-001 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | FNIRSI-001 |
| Power Source | USB Powered |
| Power source | USB Powered |
| Specification Met | Ul, Iec |
| Style | Modern |
| Style Name | Modern |
| Unit Count | 1 Count |
| Upper Temperature Rating | 40 Degrees Celsius |
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