








⚡ Power Up Your Tech IQ with Pro-Level USB Testing!
The FNIRSI FNB58 USB Tester is a compact, multi-interface digital multimeter featuring a 2.0-inch TFT LCD for real-time voltage, current, and power monitoring. It supports a wide range of fast charging protocols including QC2.0/3.0 and PD2.0/3.0, equipped with a high-precision 16-bit ADC and advanced sampling rates up to 4 million samples per second. Designed for tech professionals and enthusiasts, it offers detailed cable diagnostics, waveform analysis, and smart data recording in a lightweight, portable form factor.










| Brand | FNIRSI |
| Power Source | Corded Electric |
| Style | Digital |
| Colour | multi-color |
| Item Weight | 45 g |
| Item dimensions L x W x H | 8.2 x 4.2 x 1.2 Centimeters |
| Min. Operating Voltage | 4 Volts |
| Specification Met | CE |
| Measurement Type | Multimeter |
| Maximum Operating Voltage | 28 Volts |
| Manufacturer | FNIRSI |
| Model number | FNIRSI-FNB58-bp |
| Item Weight | 45.4 g |
| Product Dimensions | 8.2 x 4.19 x 1.19 cm; 45.36 g |
| Item model number | FNIRSI-FNB58-bp |
| Item Height | 0.47 Inches |
| Item Width | 1.65 Inches |
| Are batteries included? | No |
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