{"product_id":"fnirsi-usb-tester-fnb58-4-28v-7a-lcd-power-meter-with-app-pd2-0-pd3-0-qc2-0-qc3-0","title":"FNIRSI USB Tester FNB58 – 4-28V, 7A LCD Power Meter with App, PD2.0\/PD3.0, QC2.0\/QC3.0","description":"\u003cp\u003eMeet the FNIRSI FNB58 USB Tester, a compact yet capable tool designed to illuminate charging behavior and device power needs. Its bright 2.0-inch TFT LCD remains legible in varied lighting, delivering real-time readings for voltage, current, and power. The device merges a USB-A, Micro-USB, and Type-C interface into a portable tester, enabling quick testing of cables and adapters with a single tool.\u003c\/p\u003e\n\u003ch3\u003eKey capabilities\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2.0-inch TFT LCD display provides clear live readouts\u003c\/li\u003e\n  \u003cli\u003eIntegrated USB-A, Micro-USB, and Type-C ports for flexible testing\u003c\/li\u003e\n  \u003cli\u003eExternal 16-bit ADC and a PD protocol chip for precise measurements\u003c\/li\u003e\n  \u003cli\u003eApp software offers a mobile companion for data access and sharing\u003c\/li\u003e\n  \u003cli\u003eFast charging trigger and automatic monitoring for compatible protocols\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFast charge protocol detection\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSupports QC2.0 and QC3.0 as well as FCP\/SCP, AFC, PD2.0\/PD3.0\u003c\/li\u003e\n  \u003cli\u003eVOOC, WARP, and Super VOOC style protocols may trigger measurement automatically\u003c\/li\u003e\n  \u003cli\u003eMTK-PE automatic detection helps identify protocol compatibility\u003c\/li\u003e\n  \u003cli\u003eProtocol conversion from QC 2.0 to PD 2.0 when supported\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eParameter recording and analysis\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSix digit display of voltage, current, and power\u003c\/li\u003e\n  \u003cli\u003eTen switchable capacity and power profiles for quick comparisons\u003c\/li\u003e\n  \u003cli\u003eLow speed waveform drawing and ripple rendering up to 4 MSPS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eUSB tester detection and readings\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eWire resistance measurement by differential pressure method\u003c\/li\u003e\n  \u003cli\u003eE-Marker and DASH cable data reading for cable verification\u003c\/li\u003e\n  \u003cli\u003eStartup time record and onboard temperature monitoring\u003c\/li\u003e\n  \u003cli\u003ePD monitor and analog DASH cable support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNote on packaging and usage: this device ships without a printed manual to save resources. The QR code on the packaging links to the manual, firmware updates, and app information. To maximize compatibility, ensure the PD function switch is on, select the correct input port, and use a compatible protocol. If an incompatible protocol is detected, the unit may default to 5 V output, which can limit power measurement.\u003c\/p\u003e\n\u003cp\u003ePractical use scenarios include verifying charger capabilities, comparing different adapters, testing USB cables, and diagnosing charging irregularities. The FNB58 offers a field-ready way to observe how devices draw power and how fast charging features respond, without promising specific results. The measurements provide actionable data that can help users understand charging behavior and make informed choices about accessories.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What does the FNIRSI USB Tester FNB58 measure?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It monitors voltage, current, power, resistance, capacity, and D plus D minus signals with ripple and protocol detection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this device support PD and QC fast charging protocols?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it supports PD2.0\/PD3.0 and QC2.0\/QC3.0, plus other profiles for automatic testing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"FNIRSI","offers":[{"title":"Default Title","offer_id":47356697346242,"sku":"B0BJ253W31","price":137.23,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/3516\/7426\/files\/fnirsi-usb-tester-fnb58-lcd-display.jpg?v=1775425394","url":"https:\/\/perlastore.ca\/products\/fnirsi-usb-tester-fnb58-4-28v-7a-lcd-power-meter-with-app-pd2-0-pd3-0-qc2-0-qc3-0","provider":"Perla Store | The Ultimate A to Z Marketplace for Every Need in Canada","version":"1.0","type":"link"}