--- product_id: 497340792 title: "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" brand: "fnirsi" price: "Rp1922940" currency: IDR in_stock: true category: "Fnirsi" url: https://www.desertcart.id/products/497340792-usb-tester-4-28v-7a-lcd-usb-a-and-c store_origin: ID region: Indonesia --- # 7A max current detection 16-bit ADC & 4M sps sampling 4-28V voltage range 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 **Brand:** fnirsi **Price:** Rp1922940 **Availability:** ✅ In Stock ## Summary > ⚡ Power up your tech IQ with FNIRSI — the ultimate USB tester for pros who demand precision! ## Quick Answers - **What is this?** 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 by fnirsi - **How much does it cost?** Rp1922940 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/497340792-usb-tester-4-28v-7a-lcd-usb-a-and-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 - • **Smart App Integration:** Monitor, record & analyze power metrics on your phone with dedicated app software and gravity sensor support. - • **Future-Ready & Eco-Conscious:** Firmware updates via QR code, no paper manual—stay cutting-edge while reducing waste. - • **All-in-One USB Power Detective:** Seamlessly test USB-A, Micro-USB & Type-C ports with a crisp 2.0-inch TFT LCD display. - • **Pro-Grade Fast Charge Protocols:** Auto-detects QC2.0/3.0, PD2.0/3.0, VOOC, Super VOOC & more for ultimate charger compatibility. - • **Precision Data at Your Fingertips:** 16-bit ADC with up to 4 million samples per second for ultra-accurate voltage, current & ripple analysis. ## Overview The FNIRSI FNB58 USB Tester is a professional-grade multimeter designed for USB-A, Micro-USB, and Type-C interfaces. It supports a wide voltage range (4-28V) and current up to 7A, featuring a 2.0-inch TFT LCD and 16-bit ADC for precise voltage, current, power, and ripple measurements. Compatible with fast charge protocols including QC2.0/3.0, PD2.0/3.0, VOOC, and Super VOOC, it integrates with a mobile app for real-time monitoring and data recording. Lightweight and eco-friendly, it’s a must-have tool for tech-savvy professionals and managers who want to ensure optimal device charging and performance. ## Description 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: desertcart.com: Tools & Home Improvement ## Features - 【Multi-port USB tester】FNIRSI FNB58 has a 2.0-inch TFT LCD display, integrated USB-A, Micro-USB, Type-C interface. It is a USB voltage and current detection meter with APP software, a mobile communication terminal with gravity sensor and a fast charging trigger - 【Multifunction USB Digital Tester】FNB58 uses external 16-bit ADC, PD protocol physical chip. FNB58 USB tester can monitor the voltage, current, power, resistance, capacity, D+/D- voltage etc, it can be used to test the fast charging protocol of chargers - 【Fast Charge Protocol Trigger Detection】FNB58 supports QC2.0/QC3.0, FCP/SCP, AFC, PD2.0/3.0, VOOC/WARP, 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 Recording】 Six-digit display of voltage, current and power. 10 sets of switchable capacity, power etc. Support low-speed waveform drawing, 2 sps-100 sps sampling rate. Support ripple drawing, up to 4 M sps sampling rate - 【USB tester detection function】The 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 - 【Note】To support environmental protection and reduce paper use, the FNB58 does not include a printed manual. You can access the manual, firmware updates, and app information via the QR code provided in the packaging - Ensure the PD function switch is on, select the correct input port, and use a compatible protocol; if incompatible, the device defaults to 5 V output, which may limit power measurement ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BJ253W31 | | Best Sellers Rank | #25,913 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #21 in Voltage Testers | | Brand Name | FNIRSI | | Color | multi-color | | Compatible Devices | USB interfaces, mobile phone chargers, U disks, mobile phones, mobile power supplies, USB-A, Micro-USB, Type-C devices from various brands | | Customer Reviews | 4.4 4.4 out of 5 stars (508) | | Included Components | USB Tester | | Item Weight | 1.6 ounces | | Manufacturer | FNIRSI | | Measurement Type | Voltage, Current, Fast Charge Detection, Etc | | Minimum Operating Voltage | 4 | | Model | FNIRSI-001 | | Part Number | FNIRSI-001 | | Power Source | Battery Powered | | Specification Met | Ul, Iec | | Style Name | FNB58 | | Unit Count | 1.0 Count | | Upper Temperature Rating | 40 Degrees Celsius | ## Product Details - **Brand:** FNIRSI - **Color:** multi-color - **Item Weight:** 1.6 ounces - **Power Source:** Battery Powered - **Style:** FNB58 ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/71VDjC5CdjL.jpg) ## 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 - Treedix USB Cable Tester with 2.4" Color Screen for eMarker Reading, PD 3.0/3.1 Detection, Resistor and Continuity Check, Compatible with Lightning, Type-C, Micro-B 2.0/3.0, and Mini-B Cables --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.id/products/497340792-usb-tester-4-28v-7a-lcd-usb-a-and-c](https://www.desertcart.id/products/497340792-usb-tester-4-28v-7a-lcd-usb-a-and-c) --- *Product available on Desertcart Indonesia* *Store origin: ID* *Last updated: 2026-07-09*