Fnirsi USB-Tester

2Ratings
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Product details

The FNIRSI FNAC-28 is a multifunctional USB tester that offers both USB-C and USB-A ports. This compact meter is designed to perform voltage, current and power monitoring and supports various fast charging protocols. It is ideal for testing chargers, cables, power banks and other USB-powered devices. With two separate measurement inputs, the FNAC-28 enables simultaneous testing of the charging parameters of different devices and cables, making it a flexible tool for various applications. The integrated colour OLED display shows all relevant information in real time, so that voltage, current and current power can be seen at a glance. The intuitive menu navigation and user-friendly control buttons make handling much easier. In addition, a high-quality 16-bit analogue-to-digital converter ensures precise measurements, while the USB-C port supports bidirectional current flow, enabling comprehensive analysis of current transmission.

Key specifications

multimeter technology
Digital
voltage type
DC
measurement tolerance
0.20 ± %

General information

Item number
64629875
Manufacturer
Fnirsi
Category
Multimeter
Manufacturer No.
FNAC-28
Release date
27.10.2025
Sales rank in Category Multimeter
3 of 3595
External links
Manufacturer's site (de)

Colour

Colour
Multicoloured
Exact colour description
Black

Material

Material group
Plastic

Multimeter Features

multimeter technology
Digital
Features
Data loggers, Graphic display
Interface
USB

Metrology

voltage type
DC
current type
DC
measurement tolerance
0.20 ± %

Origin

Country of origin
China

Voluntary climate contribution

CO₂ emissions
1.98 kg
Climate contribution
CHF 0.11

Scope of delivery

Scope of delivery
USB tester
Multimeter equipment
Head unit

Product dimensions

Weight
0.05 kg

Package dimensions

Length
11.90 cm
Width
5.60 cm
Height
3.90 cm
Weight
59 g

30-day right of return
24 Months Warranty (Bring-in)
1 additional offer

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Multimeter» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 19.Yato
    0.9 %
  • 21.Testboy
    1 %
  • 22.Fnirsi
    1.4 %
  • 23.LogiLink
    1.5 %
  • 24.Peaktech
    2.2 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • 1.Fnirsi
    0 days
  • 1.Joy-it
    0 days
  • 1.Yato
    0 days
  • 4.Peaktech
    1 day
  • 5.Fluke
    3 days

Return rate

How often is a product of this brand in the «Multimeter» category returned?

Source: Digitec Galaxus
  • 12.Fluke
    1.2 %
  • 12.Joy-it
    1.2 %
  • 15.Fnirsi
    1.3 %
  • 16.CSL
    1.4 %
  • 17.Beha Amprobe
    1.7 %
Source: Digitec Galaxus