The FNIRSI FNB58 measures voltage, current and power on USB-A, Micro-USB and Type-C ports, up to 28V, 7A and 140W. Use it to check chargers, power banks, cables and phones, and to see which fast-charge protocol a charger supports.
A 16-bit external ADC and a dedicated PD protocol chip give stable readings and let it trigger PD and other fast-charge voltages. This listing is the Standard version, without Bluetooth.
Key Features
- ⚡ 4 – 28V, 0 – 7A, 140W measurement range
- 🔌 USB-A, Micro-USB and Type-C in one meter
- 📲 Fast-charge detection and triggering PD and other protocols
- 📊 Capacity, energy and cable resistance plus D+/D- voltage
- 🖥️ 2.0" colour TFT wide viewing angle
Technical Specifications
| Voltage | 4 – 28V |
|---|---|
| Current | 0 – 7A |
| Power | 0 – 140W |
| D+/D- voltage | 0 – 3.3V |
| Capacity | 0 – 9999.99Ah |
| Energy | 0 – 9999.99Wh |
| Cable resistance | 0 – 9999.9Ω |
| Recording time | up to 99 days |
| ADC | External 16-bit |
| Display | 2.0" colour TFT |
| Version | Standard (no Bluetooth) |
What's in the Box
- 1 × FNIRSI FNB58 USB tester
- Cable as supplied by FNIRSI