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Item #:
92337868
FNIRSI USB Tester 4-24V 6.5A LCD USB A&C Voltage Current Power Display Multimeter with App Software, Fast Charge Detection Trigger,
Item #:
92337868
ZMW 1345
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*All items will import from US
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Imported from USA store
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Order now and get it around Sunday, August 23
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FNIRSI FNB48P USB tester features an ultra-wide viewing angle display and powerful app integration, making it the ultimate tool for detecting fast charge protocols and monitoring your devices with precision.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Dual Ports
Supports both USB A and C connections, accommodating various devices for seamless charging and data transfer, enhancing versatility and user convenience.
App Software
Integrated app software provides real-time monitoring and detailed analysis, empowering users to optimize charging performance and troubleshoot effectively, ensuring reliability in power management.
Durable Build
Constructed with a CNC metal shell, this USB tester ensures durability while maintaining portability, offering exceptional quality and value for long-term use in diverse environments.
Product Details
| Power Source | Corded Electric |
| Minimum Operating Voltage | 4 |
| Measurement Type | Multimeter |
| Style Name | FNB48P |
| Color | blue |
| Item Weight | 0.1 Pounds (50 grams) |
| Specification Met | CE |
| Brand Name | FNIRSI |
| Model | FNB48P |
| Manufacturer | FNIRSI |
| Part Number | FNB48P |
| Included Components | USB Tester |
| Unit Count | 1.0 Count |
| Brand | FNIRSI |
| Style | FNB48P |
Who Should Buy?
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Tech Enthusiasts
Ideal for users who regularly test and monitor various USB devices and chargers for performance and compatibility.
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Mobile Developers
Perfect for developers crafting mobile apps that require thorough power management and testing of power delivery protocols.
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DIY Projects
Great for hobbyists engaging in electronics projects requiring reliable voltage and current measurements for various components.
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Casual Users
Not suitable for casual users who just need basic charging without detailed measurements or specifications.
Product Description
FNIRSI USB Tester 4-24V 6.5A LCD USB A&C Voltage Current Power Display Multimeter with App Software, Fast Charge Detection Trigger, PD2.0/PD3.0,QC2.0/QC3.0, CNC Metal Shell
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Customer Questions & Answers
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Question:
What features does the FNIRSI USB Tester offer?
Answer: The FNIRSI USB Tester comes equipped with a versatile LCD display that showcases voltage, current, and power readings ranging from 4V to 24V and up to 6.5A. It supports fast charging protocols such as PD2.0, PD3.0, QC2.0, and QC3.0, allowing you to test devices for quick charge compatibility. This makes it an invaluable tool for tech enthusiasts and professionals alike, ensuring you can monitor and assess the performance of USB devices, power banks, and chargers. Ideal for diagnosing issues in charging setups or optimizing charging speeds. -
Question:
How do I use the FNIRSI USB Tester?
Answer: Using the FNIRSI USB Tester is straightforward. Simply connect it in-line between your power source and the device you wish to test. The LCD will instantly indicate the voltage and current flowing to the device. This tester is particularly useful for troubleshooting issues with USB chargers or identifying the maximum charging capabilities of your devices. Whether you're a DIY electronics hobbyist or a professional technician, this tool can help you make informed decisions about your charging setups. -
Question:
Is the FNIRSI USB Tester compatible with various devices?
Answer: Yes, the FNIRSI USB Tester is designed to work with a wide array of USB devices including smartphones, tablets, power banks, and laptops. Its compatibility with fast charge protocols like PD and QC means it can accurately display performance metrics for both older and newer technology. This feature makes it especially useful for users with multiple devices or those looking to optimize their charging configurations across various tech platforms. -
Question:
What kind of display does the FNIRSI USB Tester have?
Answer: The FNIRSI USB Tester features a clear and intuitive LCD display that presents real-time data on voltage, current, and power readings. This helps users easily monitor performance at a glance. With this display, you can track power usage during charging sessions, making it easier to troubleshoot and ensure optimal performance. For anyone looking to analyze their power consumption or charge efficiencies, the display provides vital insights and user-friendly visualization. -
Question:
Can the FNIRSI USB Tester detect fast charging?
Answer: Absolutely! The FNIRSI USB Tester has built-in capabilities to detect fast charging protocols including PD2.0, PD3.0, QC2.0, and QC3.0. This feature allows the user to verify whether their devices and chargers support fast charging, providing a clear indication of the charging process efficiency. It's particularly beneficial when paired with modern devices that rely on fast charging technology, ensuring that users get the optimal charging performance they expect. -
Question:
What is the maximum current rating for the FNIRSI USB Tester?
Answer: The FNIRSI USB Tester can handle a maximum current of 6.5A, making it suitable for a variety of high-power USB devices. This high current rating ensures that it can be used with power-hungry devices while still providing accurate measurements. Whether you're testing a fast-charging power bank or analyzing the output from a high-capacity charger, this tester ensures you have the capability needed to assess performance effectively. -
Question:
Is the FNIRSI USB Tester portable?
Answer: Yes, the FNIRSI USB Tester is designed with portability in mind. Its compact size makes it easy to carry in a bag or pocket, allowing users to test charging capabilities on the go. Whether you are a tech enthusiast traveling for work or a field technician assessing devices, the lightweight nature of this tester makes it convenient to use anywhere. You can easily integrate this tool into your routine for ongoing device performance assessments. -
Question:
How accurate are the readings from the FNIRSI USB Tester?
Answer: The FNIRSI USB Tester is designed to provide highly accurate readings of voltage, current, and power. This precision ensures that users can trust the data while performing diagnostics or optimizing charging setups. By relying on this accuracy, tech enthusiasts and professionals can make informed decisions based on real-time feedback, which is crucial for maintaining the integrity of electronic devices and power efficiency. -
Question:
Can multiple users benefit from the FNIRSI USB Tester?
Answer: Yes, multiple users can benefit from the FNIRSI USB Tester. It's a versatile tool that is useful for everyone from casual users to professional technicians. Whether you're a gamer testing phone chargers, a DIY enthusiast tinkering with electronics, or an engineer analyzing device performance, this tester provides immediate and clear data to optimize your setup. Its ability to handle various devices and fast-charging technologies makes it indispensable in shared tech environments. -
Question:
Where can I buy the FNIRSI USB Tester in Zambia?
Answer: You can purchase the FNIRSI USB Tester at Ubuy. They offer a convenient online platform where you can find this reliable tool among various electronics and accessories. Ubuy is known for its extensive selection of quality products, making it a great place to find the FNIRSI USB Tester. Their user-friendly interface and detailed product descriptions ensure you have all the information you need to make a purchase.
FNIRSI Multi Testers Editorial Review
**** The FNIRSI USB Tester 4-24V 6.5A LCD Voltage Current Multimeter has received an enthusiastic reception from users, particularly for its robust capabilities in diagnosing USB charging issues. Many customers find it easy to use, making it an invaluable tool for anyone dealing with electronic devices and chargers. Users appreciate the tester's ability to display detailed data, such as voltage, current, and wattage, over time, which can be instrumental in troubleshooting charging problems. The device's compatibility with various charging protocols, including PD and QC, allows users to accurately assess different setups and compare performance in a way that isn't possible with standard meters. The interface is intuitive, and while some users mention that it may take a bit of time to familiarize themselves with advanced settings, they generally find it a straightforward, user-friendly device. However, there are some important Considerations to keep in mind. A few users reported an issue regarding the PD COM switch being on by default, which can inadvertently lead to higher output voltages beyond what some devices can tolerate. Moreover, the lack of a manual upon initial release caused some confusion, although a corrective measure was taken with an update in the form of an online manual. Another aspect noted was the backlight functionality, which does not stay on continuously, requiring users to press a button to activate it. Despite these minor setbacks, overwhelmingly positive feedback regarding the tester's accuracy and performance has solidified its status as a must-have device for tech enthusiasts. Many users commend its high-quality design and build, recommending it for anyone needing precise monitoring and troubleshooting of USB charging. **
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Pros
- User-friendly and intuitive operation.
- Accurate readings compared to cheaper alternatives.
- Provides detailed insights into charging protocols.
- Solid, high-quality build.
Cons
- Initial lack of a manual caused confusion.
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
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Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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SAO JOHN
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“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
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ZMW 1345
Order now and get it around Sunday, August 23
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Ultra-wide viewing angle 1.77-inch TFT LCD display.
- Supports various fast charging protocols including PD and QC.
- Can monitor voltage, current, power, resistance, and temperature.
- Records up to 10 sets of capacity, power, and time statistics.
- Internal resistance measurement and onboard temperature monitoring.
- Versatile for use with chargers, USB devices, and more.
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