FNIRSI USB Tester Voltmeter Ammeter Type C Fast Charge
Meet the FNIRSI USB Tester Voltmeter Ammeter Type-C Fast Charge — a compact, CE-certified testing companion designed to take the mystery out of USB-C charging. This digital tester slips between your charger, cable, and device to deliver real-time readings of voltage, current, and power, so you know exactly what your setup delivers. No battery is needed; it powers from the USB-C port under test, making it perfect for quick checks at home, in the workshop, or on the go. With a clear digital display and precise measurements, you’ll quickly diagnose slow charging, verify fast-charging claims, and protect your devices from under- or over-voltage problems.
Benefits & Tips
- Real-time measurements: monitor voltage 4–28 V, current 0–7 A, and power up to 120 W to verify charging performance.
- Easy testing for cables and adapters: compare different USB-C chargers and cables to identify bottlenecks and ensure you get the fastest, safest charge.
- Portable and simple to use: its compact 42 × 13 × 82 mm form fits in your toolkit or pocket for on-the-go diagnostics.
Product Specifications
- Model Number: FNB58
- Display Type: Digital
- Voltage Range (monitor): 4–28 V
- Monitor Current: 0–7 A
- Power Range: 0–120 W
- Energy Used: 0–9999.99 Wh
- Battery Included: No
- Dimensions: 42 × 13 × 82 mm
- Origin: Mainland China
- Certification: CE
- Power Supply: DC
- Record Time: 99 days 23:59:59
- Load Internal Resistance: 0–9999.9 Ω
- Cable Resistance: 0–9999.9 Ω
- D+/D- Voltage: 0–3.3 V
- Capacity: 0–9999.99 Ah
- Operating Temperature: 0–40°C
- DIY Supplies: Electrical
- Choice: Yes
Package includes:
- 1 x FNIRSI USB Tester Voltmeter Type-C Fast Charge
Warnings / Reminders
- Readings are for reference; stay within the device’s monitor range: 0–7 A and up to 120 W.
- Operating temperature should be 0–40°C; avoid use in extreme conditions.
- Battery not included; the unit draws power from the USB-C port under test.
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Please note: All electronic and mechanical equipment, devices and machines sold to EU countries are CE certified and carry a two year warranty.