--- product_id: 154985357 title: "USB C Tester,KJ-KayJI 2 in 1 Tester Color Screen IPS Digital Multimeter(2024),Voltage,Cur,Pwr,Resistance,Elec,Temp,Capacity,Tme,Fast Charging,with USB Clip Cable Support PD2.0/PD3.0,QC2.0/QC3.0,BC1.2" brand: "kj-kayji" price: "€ 40.67" currency: EUR in_stock: true category: "Kj Kay Ji" url: https://www.desertcart.pt/products/154985357-usb-c-tester-kj-kayji-2-in-1-tester-color store_origin: PT region: Portugal --- # Fast charging support PD2.0/PD3.0, QC2.0/QC3.0 Color IPS screen for real-time multimeter data Measures capacity & power of power banks USB C Tester,KJ-KayJI 2 in 1 Tester Color Screen IPS Digital Multimeter(2024),Voltage,Cur,Pwr,Resistance,Elec,Temp,Capacity,Tme,Fast Charging,with USB Clip Cable Support PD2.0/PD3.0,QC2.0/QC3.0,BC1.2 **Brand:** kj-kayji **Price:** € 40.67 **Availability:** ✅ In Stock ## Summary > ⚡ Charge smarter, test faster — never miss a watt! ## Quick Answers - **What is this?** USB C Tester,KJ-KayJI 2 in 1 Tester Color Screen IPS Digital Multimeter(2024),Voltage,Cur,Pwr,Resistance,Elec,Temp,Capacity,Tme,Fast Charging,with USB Clip Cable Support PD2.0/PD3.0,QC2.0/QC3.0,BC1.2 by kj-kayji - **How much does it cost?** € 40.67 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/154985357-usb-c-tester-kj-kayji-2-in-1-tester-color) ## Best For - kj-kayji enthusiasts ## Why This Product - Trusted kj-kayji brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Lightweight:** Sleek 3.23 x 2.44 x 0.39 inch design weighing just 34.5g — your pocket-sized tech guardian. - • **Precision at a Glance:** Vibrant IPS color display delivers instant, crystal-clear voltage, current, and power readings. - • **Universal Compatibility:** Seamlessly supports USB-C and USB-A devices with PD2.0/3.0, QC2.0/3.0, and BC1.2 fast charging protocols. - • **Comprehensive Diagnostics:** Monitor resistance, temperature, charging time, and capacity to ensure your cables and chargers perform at peak efficiency. - • **Power Bank & Wireless Charger Testing:** Easily verify max current and capacity, so you never get caught with a dead device again. ## Overview The KJ-KayJI 2-in-1 USB C Tester is a cutting-edge digital multimeter featuring a vibrant IPS color screen that measures voltage, current, power, resistance, temperature, capacity, and charging time. Compatible with USB-C and USB-A devices supporting PD2.0/3.0, QC2.0/3.0, and BC1.2 fast charging standards, it ensures optimal performance of chargers, cables, power banks, and wireless chargers in a compact, lightweight form factor. ## Description USB C Tester,KJ-KayJI 2 in 1 Tester Color Screen IPS Digital Multimeter(2024),Voltage,Cur,Pwr,Resistance,Elec,Temp,Capacity,Tme,Fast Charging,with USB Clip Cable Support PD2.0/PD3.0,QC2.0/QC3.0,BC1.2: desertcart.com: Tools & Home Improvement ## Features - Multiple detection functions of USB C Tester：USB C Tester can monitor the voltage,current,power,resistance,power,capacity,temperature of Micro-usb Cable/USB C Cable/usb a to usb c Cable/USB C/USB A device,charging time,Test Group and fast charging.Check the performance of USB C/USB A charger and USB C Cable/usb a to usb c Cable (charging speed and quality). It can also be used to find the maximum current of wireless chargers and test the capacity and power of power banks. - IPS Color Display Screen：Provides 9 IPS color screen display interfaces, and the display interface is switched by buttons. USB Tester can detect data such as voltage, current, power, resistance, electricity, temperature, capacity, timing, fast charge, D/D-, V/V-, etc. It can also detect whether the charger, cable supports fast charging. (IPS HD color screen is clearer. Only the Screen rotation interface supports 180-degree flipping of the screen) - Test Power Bank/Phone mAh：Test Power Bank, 2 clicks to clear the Tester mAh data, fully charge the power bank, discharge quickly with Load, "Cap" will show how much mAh Capacity the Power bank has. Multiply by 90%. Test the phone, the phone is fully charged, 3 clicks to clear the Tester WH data, the battery is exhausted, WH/3.75=mAh Capacity x 1000 x 90%=close to cell phone battery capacity (Power bank battery same) - Test charger voltage and current：Support USB A Charger, USB C Charger. Connect Load, adjust the current to the charger support current, if the tester shows that the voltage and current match the charger support current, the quality of the charger is excellent, otherwise the quality of the charger is not good. - Test cable voltage and current：Support testing Micro-usb cable, usb a to usb c Cable, usb c to usb c Cable. Use a charger with excellent quality after testing, insert the cable, connect the load to test the voltage and current of the cable, if the tester The displayed voltage and current are in line with the current supported by the charger, the cable quality is excellent, and the charging speed is fast; otherwise, the cable quality is not good, and the charging speed is slow. - Test whether fast charging is supported：Charger, insert the tester and Load into the charger to adjust the current to 3A, and "FCP" and "FAST" appear on the display interface, indicating that the charger supports fast charging. Cable, after connecting the charger, insert the cable into the tester and connect to Load, adjust the current to 3A, the display interface shows "FCP" and "FAST", indicating that the Cable supports fast charging. - WIDE RANGE OF APPLICATION：must use the OTG adapter (Micro-usb adapter) that comes with the USB tester, which supports PD3.0/PD2.0, QC3.0/QC2.0, BC1.2 and USB A or USB C ports , support newer iPhone/iPad Pro and Android phone. Compatible with new MacBook Pro, MacBook, iMac, iMac Pro, Dell XPS, Acer Aspire, HP Spectre, ASUE Zenbook, Lenovo Thinkpad, Eluktronics, Razer Blade Stealth, Chromebook, Microsoft Surface Pro and more USB C/USB A devices and charging device. - Important Tips and 18 Month Warranty Service：When your device does not have a USB port, you can use an alligator clip to clamp the positive and negative poles and convert to USB before testing. When your USB-C device cannot be tested, please insert a small adapter, the small adapter will start the tester. If you receive a defective USB tester or if you have any questions, please contact us first to obtain a valid warranty replacement service for replacement or other assistance. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07X3HST7V | | Best Sellers Rank | #67,914 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #96 in Multi Testers | | Brand Name | KJ-KayJI | | Color | Black | | Compatible Devices | USB-C devices supporting PD2.0/PD3.0, QC2.0/QC3.0, BC1.2 standards | | Customer Reviews | 4.5 4.5 out of 5 stars (2,177) | | Item Dimensions | 3.23 x 2.44 x 0.39 inches | | Item Weight | 34.5 g | | Manufacturer | KJ-KayJI | | Measurement Type | Multimeter | | Model | J7-C | | Number of Items | 1 | | Part Number | J7-C | | Power Source | Corded Electric | | Specification Met | CE, RoHS | | Style Name | Voltage Tester | ## Product Details - **Brand:** KJ-KayJI - **Color:** Black - **Item Weight:** 34.5 g - **Power Source:** Corded Electric - **Style:** Voltage Tester ## Images ![USB C Tester,KJ-KayJI 2 in 1 Tester Color Screen IPS Digital Multimeter(2024),Voltage,Cur,Pwr,Resistance,Elec,Temp,Capacity,Tme,Fast Charging,with USB Clip Cable Support PD2.0/PD3.0,QC2.0/QC3.0,BC1.2 - Image 1](https://m.media-amazon.com/images/I/61E+kuQxEvL.jpg) ## Available Options This product comes in different **Set** options. ## Frequently Bought Together - USB C Tester,KJ-KayJI 2 in 1 Tester Color Screen IPS Digital Multimeter(2024),Voltage,Cur,Pwr,Resistance,Elec,Temp,Capacity,Tme,Fast Charging,with USB Clip Cable Support PD2.0/PD3.0,QC2.0/QC3.0,BC1.2 - Treedix USB Cable Tester Board USB Cable Checker Data Wire with Acrylic Case Charging Test Data Line Type-C Micro Type A Type B - MakerHawk USB Multimeter USB Voltmeter Ammeter Load Tester USB Voltage Current PD Battery Power Capacity Charger Type C Meter Tester LCD Display Cable Resistance QC2.0/3.0/4.0 N10 1.44 Inch Screen --- ## 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.pt/products/154985357-usb-c-tester-kj-kayji-2-in-1-tester-color](https://www.desertcart.pt/products/154985357-usb-c-tester-kj-kayji-2-in-1-tester-color) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-11-09*