---
product_id: 496608936
title: "FNIRSI USB Tester 4-28V 7A LCD USB A&C Voltage Current Tester Multimeter with Bluetooth, Fast Charge Detection Trigger Capacity Ripple Measurement, PD2.0/PD3.0,QC2.0/QC3.0"
brand: "fnirsi"
price: "₱8833"
currency: PHP
in_stock: true
reviews_count: 5
category: "Fnirsi"
url: https://www.desertcart.ph/products/496608936-fnirsi-usb-tester-4-28v-7a-lcd-usb-a-c
store_origin: PH
region: Philippines
---

# Fast charge protocol trigger 16-bit ADC precision Supports USB-A, Micro-USB & Type-C FNIRSI USB Tester 4-28V 7A LCD USB A&C Voltage Current Tester Multimeter with Bluetooth, Fast Charge Detection Trigger Capacity Ripple Measurement, PD2.0/PD3.0,QC2.0/QC3.0

**Brand:** fnirsi
**Price:** ₱8833
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your tech IQ with FNIRSI’s ultimate USB tester!

## Quick Answers

- **What is this?** FNIRSI USB Tester 4-28V 7A LCD USB A&C Voltage Current Tester Multimeter with Bluetooth, Fast Charge Detection Trigger Capacity Ripple Measurement, PD2.0/PD3.0,QC2.0/QC3.0 by fnirsi
- **How much does it cost?** ₱8833 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/496608936-fnirsi-usb-tester-4-28v-7a-lcd-usb-a-c)

## Best For

- fnirsi enthusiasts

## Why This Product

- Trusted fnirsi brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-in-One USB Interface:** Seamlessly test USB-A, Micro-USB, and Type-C devices with one sleek tool.
- • **Comprehensive Data Logging:** Record up to 9 hours of voltage/current curves and switch between 10 capacity & power stats sets.
- • **Ultra-Precise Power Metrics:** Experience 0.00001 resolution on voltage, current & power for next-level accuracy.
- • **Fast Charge Protocol Mastery:** Automatically detect and trigger QC2.0/3.0, PD2.0/3.0, VOOC, and more for ultimate charging insights.
- • **Advanced Cable & Ripple Analysis:** Measure internal wire resistance, read E-Marker & DASH cable data, plus high-speed ripple detection.

## Overview

The FNIRSI FNB58 USB Tester is a compact, high-precision multimeter designed for professionals and tech enthusiasts. Featuring a 2.0-inch full-color TFT display and integrated USB-A, Micro-USB, and Type-C ports, it delivers ultra-accurate voltage, current, and power measurements with 16-bit ADC technology. It supports a wide range of fast charging protocols including QC2.0/3.0 and PD3.0, while offering advanced data logging, ripple analysis, and cable diagnostics. Perfect for monitoring and optimizing USB power delivery in modern devices.

## Description

FNB58 USB tester is a high-reliability, high-safety USB voltage andcurrent detection meter and a mobile communication terminal fast chargingtrigger.It has a 2.0-inch full-color ultra-wide viewing angle TFT LCD display, integrated USB-A, Micro-USB, Type-C interface.Use external 16-bit ADC, PD protocol physical chip.It can be used to measure the power supply or power consumption of products such as USB interfaces, mobile phone chargers, and U disks.It can be used to measure the charging power of mobile phones and the input and output of mobile power supplies. It can be used to test the fast charging protocol of chargers.This instruction manual includes relevant safety information, warningtips and solutions to common abnormal situations. Please read the relevantcontent carefully and strictly abide by all warnings and precautions.Do not connect the monitoring interface to a power supply exceeding 28V.Do not connect the PC connection port to a power source exceeding 16v.Only one pair of monitoring interfaces (one input port,one outputport) can work at the same time. When there is a pair of monitoring interfaces working, it is forbidden to connect to the equipment onother monitoring interfaces. (Except the PC connection port, the PC port can be connected to an external power supply).When using the fast charge trigger module,please do not connect equipment that cannot withstand high voltage to any monitoring interface.After using the PD trigger/monitor/conversion/read E-Marker cablefunction, please turn the PD communication switch in the lower rightcorner back to the OFF position.Do not charge the phone after the fast charge is triggered.

Review: não tem bluetooth - Produto de excelente qualidade, ótimo acabamento e muito preciso
Review: ✅ Accurate, compact, efficient and sufficient - I am providing an overall comment for three USB testers, all of which deserve to be purchased as they complement each other perfectly and are consistent in their results. I would like to dedicate the majority of this review to the Bit Trade One model, which has recently arrived on desertcart. It deserves a shoutout because the tool is exceptional and inexpensive for what it offers. The ADUSBCIM is a USB cable tester that truly complements traditional USB cable testers. Only the cable to be tested needs to be plugged into the A and B ports, and the tool does the rest. The reference value for calculating the cable's resistance is taken using a CR2032 battery, and I note that the calculation is very precise and stable. You can find on Bit Trade One's ADUSBCIM GitHub page, in the Pull Request section, a manual in English in PDF format. This is my small contribution to the project, as the current official English manual is more of a word-by-word description that is difficult to understand. Thanks to this tester, I discovered, for example, that Anker cables, the 765 series, were actually poor high-resistance cables, and that I had much better options for charging. I ended up wasting money on cables that turned out to be slower than cables that were given to me for free with computer accessories. The FNIRSI FNB58 is a very comprehensive USB-A and USB-C port tester. It notably offers numerous rapid charging protocol tests, can test the quality and resistance of a cable, and obtain oscilloscope-like graphical representations. Now that we are on PD3.0 and with PD3.1 approaching quickly, owning one of these tools is now essential to validate the proper functioning of an installation. I've read a lot of advice on Reddit, and if you're looking to equip yourself with the best products offering the most testing possibilities, here are the tester references to get: - Bit Trade One ADUSBCIM (very thorough cable tester testing all the lines of a cable) - FNIRSI FNB58 (the most comprehensive, many ports, many scenarios, USBA/C Micro) - ChargerLab KM003C (the most modern, TB4, 250W) If you have these three or at least a combination of the cable and usb tester, it will take you no more than a few days to become a USB expert. 👌

## Features

- 【Updated Designed USB Tester】FNIRSI FNB58 USB tester has a 2.0-inch full-color ultra-wide viewing angle TFT LCD display, integrated USB-A, Micro-USB, Type-C interface. It is a high-reliability, high-safety USB voltage andcurrent detection meter and a mobile communication terminal fast chargingtrigger. Gravity sensor, automatically switch the display direction.
- 【Multifunction USB Digital Tester】FNB58 uses external 16-bit ADC, PD protocol physical chip. It can be used to measure the power supply or power consumption of products such as USB interfaces, mobile phone chargers, and U disks. FNB58 USB tester can monitor the voltage, current, power, resistance, capacity, temperature, D+/D- voltage etc, it can be used to test the fast charging protocol of chargers.
- 【Fast Charge Protocol Trigger Detection】FNB58 supports trigger detection of various fast charging protocols, QC2.0/QC3.0 trigger, FCP/SCP trigger, AFC trigger, PD2.0/3.0 trigger, VOOC/WARP trigger, Super VOOC 1.0/2.0 trigger. The above protocols all support automatic monitoring. MTK-PE automatic detection. Support QC2.O->PD2.0 protocol conversion.
- 【Parameter Detection and Recording】The highest six-digit display of voltage, current and power, the highest resolution is 0.00001 (V/A/W). 10 sets of switchable capacity, power and time statistics. 1 set of voltage and current curve records, maximum support 9 hours. Support low-speed waveform (voltage, current, D+/D-) drawing, 2sps->100sps sampling rate. Support high-speed ripple (voltage, AC coupling)drawing, up to 4M sps sampling rate.
- 【Other detection functions】FNB58 also has many functions that other USB testers do not have. The internal resistance measurement of the wire by the differential pressure method. E-Marker Cable chip reading. DASH Cable data reading. Record of startup time. Onboard temperature measurement. PD monitor. Analog DASH cable. ☆☆In order to respond to the environmental protection policy and reduce the waste and use of paper, FNB58 does not come with paper manuals.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BJ253W31 |
| Best Sellers Rank | 185,219 in DIY & Tools ( See Top 100 in DIY & Tools ) 503 in Multi Testers |
| Brand | FNIRSI |
| Colour | silver |
| Customer Reviews | 4.4 out of 5 stars 569 Reviews |
| Included Components | USB Tester |
| Item Weight | 0.1 Pounds |
| Item weight | 0.1 Pounds |
| Manufacturer | FNIRSI |
| Maximum Operating Voltage | 28 Volts |
| Measurement Type | Voltmeter, Ammeter, Ohmmeter |
| Min. Operating voltage | 4 Volts |
| Minimum Operating Voltage | 4 Volts |
| Model Number | FNIRSI-001 |
| Power Source | Corded Electric |
| Power source | Corded Electric |
| Specification Met | IEC 1010, UL |
| Style | Modern |
| Style Name | Modern |
| Upper Temperature Rating | 40 Degrees Celsius |

## Product Details

- **Brand:** FNIRSI
- **Power source:** Corded Electric
- **Style:** Modern
- **Colour:** silver
- **Item weight:** 45 g

## Images

![FNIRSI USB Tester 4-28V 7A LCD USB A&C Voltage Current Tester Multimeter with Bluetooth, Fast Charge Detection Trigger Capacity Ripple Measurement, PD2.0/PD3.0,QC2.0/QC3.0 - Image 1](https://m.media-amazon.com/images/I/71VDjC5CdjL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ não tem bluetooth
*by W***N on 17 February 2024*

Produto de excelente qualidade, ótimo acabamento e muito preciso

### ⭐⭐⭐⭐⭐ ✅ Accurate, compact, efficient and sufficient
*by A***. on 29 February 2024*

I am providing an overall comment for three USB testers, all of which deserve to be purchased as they complement each other perfectly and are consistent in their results. I would like to dedicate the majority of this review to the Bit Trade One model, which has recently arrived on Amazon. It deserves a shoutout because the tool is exceptional and inexpensive for what it offers. The ADUSBCIM is a USB cable tester that truly complements traditional USB cable testers. Only the cable to be tested needs to be plugged into the A and B ports, and the tool does the rest. The reference value for calculating the cable's resistance is taken using a CR2032 battery, and I note that the calculation is very precise and stable. You can find on Bit Trade One's ADUSBCIM GitHub page, in the Pull Request section, a manual in English in PDF format. This is my small contribution to the project, as the current official English manual is more of a word-by-word description that is difficult to understand. Thanks to this tester, I discovered, for example, that Anker cables, the 765 series, were actually poor high-resistance cables, and that I had much better options for charging. I ended up wasting money on cables that turned out to be slower than cables that were given to me for free with computer accessories. The FNIRSI FNB58 is a very comprehensive USB-A and USB-C port tester. It notably offers numerous rapid charging protocol tests, can test the quality and resistance of a cable, and obtain oscilloscope-like graphical representations. Now that we are on PD3.0 and with PD3.1 approaching quickly, owning one of these tools is now essential to validate the proper functioning of an installation. I've read a lot of advice on Reddit, and if you're looking to equip yourself with the best products offering the most testing possibilities, here are the tester references to get: - Bit Trade One ADUSBCIM (very thorough cable tester testing all the lines of a cable) - FNIRSI FNB58 (the most comprehensive, many ports, many scenarios, USBA/C Micro) - ChargerLab KM003C (the most modern, TB4, 250W) If you have these three or at least a combination of the cable and usb tester, it will take you no more than a few days to become a USB expert. 👌

### ⭐⭐⭐⭐⭐ Excelente , cumple con lo publicado,
*by E***E on 3 December 2025*

Excelente , cumple con lo publicado,

## Frequently Bought Together

- FNIRSI USB Tester 4-28V 7A LCD USB A&C Voltage Current Power Tester Multimeter with App Software, Fast Charge Detection Trigger Capacity Ripple Measurement, PD2.0/PD3.0,QC2.0/QC3.0
- Treedix USB Cable Tester Board USB Cable Checker Data Wire with Acrylic Case Charging Test Data Line Type-C Micro Type A Type B
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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-01-31*