Fnirsi FNB58

Cable tester
Ratings
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Product details

The FNIRSI FNB58 USB Port Tester is a sophisticated measuring instrument designed specifically for analysing USB chargers and cables. With its advanced technology, it enables the verification of power parameters, protocol compatibility and the quality of accessories. The clear 2-inch LCD display shows key measurement values such as voltage, current and power in real time, whilst the high measurement accuracy ensures precise analysis. The tester supports various fast-charging standards, including PD3.1, and can test chargers and cables for their actual performance. Furthermore, Bluetooth connectivity offers the ability to conveniently monitor data via an app, providing additional safety features and a user-friendly experience. The FNIRSI FNB58 is therefore an indispensable tool for tech enthusiasts and service technicians who want complete control over the charging process.

Key specifications

Multimeter type
Cable tester
multimeter technology
Digital
voltage type
DC

General information

Item number
70109243
Manufacturer
Fnirsi
Category
Multimeter
Manufacturer No.
FNB58
Release date
7.5.2026
Sales rank in Category Multimeter
17 of 3286

Colour

Colour
Black
Exact colour description
Black

Multimeter Features

Multimeter type
Cable tester
multimeter technology
Digital
Features
Graphic display
Interface
Bluetooth, USB

Metrology

voltage type
DC

Voluntary climate contribution

CO₂ emissions
27.02 kg
Climate contribution
CHF 0.64

Scope of delivery

Multimeter equipment
Head unit

Package dimensions

Length
11.50 cm
Width
8.40 cm
Height
2.50 cm
Weight
104 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
  • Fnirsi
    Not enough data
  • 1.StarTech
    0 %
  • 2.Beha Amprobe
    0.1 %
  • 2.Bosch Professional
    0.1 %
  • 4.CSL
    0.2 %

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
  • Fnirsi
    Not enough data
  • 1.Joy-it
    0 days
  • 1.Yato
    0 days
  • 3.Peaktech
    1 day
  • 4.Fluke
    3 days

Return rate

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

Source: Digitec Galaxus
  • 13.CSL
    1.4 %
  • 13.Fluke
    1.4 %
  • 13.Fnirsi
    1.4 %
  • 16.StarTech
    1.5 %
  • 17.Elbro
    1.7 %
Source: Digitec Galaxus