--- 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: "AR$69572" currency: ARS in_stock: true reviews_count: 8 category: "Kj Kay Ji" url: https://www.desertcart.com.ar/products/154985357-usb-c-tester-kj-kayji-2-in-1-tester-color store_origin: AR region: Argentina --- # 32V max voltage 9 IPS color display modes Supports PD3.0/QC3.0 fast charging 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:** AR$69572 **Availability:** βœ… In Stock ## Summary > πŸ”‹ Charge smarter, test faster β€” 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?** AR$69572 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/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 - β€’ **Portable Tech Essential:** Compact, lightweight design with USB clip cable and alligator clips for versatile on-the-go diagnostics. - β€’ **Precision Power Metrics:** Accurately measures voltage, current, power, resistance, and temperature for all USB types. - β€’ **Vibrant IPS Color Display:** Switch between 9 clear, customizable interfaces for real-time data at a glance. - β€’ **Fast Charging Compatibility:** Instantly verifies PD2.0/PD3.0, QC2.0/QC3.0, BC1.2 protocols to ensure peak charging speed. - β€’ **Comprehensive Cable & Charger Testing:** Diagnose cable quality and charger output to avoid slow charging and device damage. ## Overview The KJ-KayJI USB C Tester is a compact, high-precision digital multimeter featuring a vibrant 9-mode IPS color screen. It measures voltage up to 32V, current, power, resistance, temperature, and capacity across USB A, USB C, and Micro-USB cables. Supporting fast charging standards PD3.0, QC3.0, and BC1.2, it ensures your chargers and cables deliver optimal performance. Ideal for tech-savvy professionals, it offers detailed diagnostics for chargers, cables, power banks, and wireless chargers, all in a sleek, portable form factor with included USB clip and alligator cables. ## Description Product description Tester Latest Button Functions Press Once-Click: Switch the Display Interface Fast Double-Click: Capacity mAH Clear Fast Press Three-Click: Current WH Clear Fast Press Four-Click: Time Clea Fast Press Five-Click: Switch Data Storage Group (NO.X) Long Press Button, Capacity, Power, Time, Clear the current group (mAh, Wh, 00:00:00) Switch to the Screen rotation interface Long Press the Screen to Flip, Other interfaces can only long press to clear data. Voltage and current warning interface:2 click to add, 3 click to reduce,When add and reduce, long press is continuous addition and subtraction; Tips： If there is current in the tester at no load,​Press and hold the tester button,insert the device,and calibrate to zero. During calibration,the output must not have any current consumption. Tester highlights When inserting the tester into the USB-C device and USB C Cable/usb a to usb c Cable, you must use the OTG adapter (Micro-usb adapter) or Micro-usb Cable to insert the Micro-USB INPUT Port of the USB Tester to trigger the PD charging function. The tester can be used normally. Scope of application Micro-usb cable, usb a to usb c Cable, usb c to usb c Cable. USB A Charger, USB C Charger, Power Bank and other USB devices. USB C bidirectional current: USB C input and USB C output ports can be used with each other, not limited to the input port or the output port. Inserting USB C Cable into USB C output requires USB C input into the device (mobile phone, Laptop) to form a current loop, so that the tester can display normally and the data is the same. Important:Please download more information from Product guides and documents The product is constantly updated and new content is added, so sometimes the version you receive may be different from the description, but it does not affect the use of the product. Multi-screen interface Chinese and English interface display: voltage, current, power, resistance, electricity, CPU temperature, capacity, temperature, timing, test group. Large font capacity interface: voltage, current, power, capacity, power, test group, charging direction. Personalized interface: personalized interface such as voltage and current. USB 4-wire detection interface: multiple fast charging identification, fast charging identification display, V-: ground wire, D+/D-: USB fast charging D+/D- logic voltage value, V+: power supply voltage, timing, resistance, power, capacity, current/power. Screen flip interface: switch to this interface, long press the button to flip the screen 180Β°, other interfaces cannot be flipped by long pressing. Voltage and current warning interface: adjust the Max/Min voltage and Max current of the tester,When the voltage and current exceeds or falls below this range, the tester will shut down to protect your equipment. Test Micro-usb/usb a to usb c/usb c to usb c Cable Tips: You need to test the charger before testing the cable 1. Check the supported voltage and current of the charger, insert the tester, connect the adjustable Load, adjust the current to the supported current of the charger, the voltage does not change The charger is of excellent quality. The quality of the charger is poor if the voltage drop exceeds 1V, and the voltage drop within 0.5V is within the normal range. 2. Use the tested charger to insert the corresponding cable, adjust the current to the supported current of the charger, if the voltage drop exceeds 1V, the cable quality is poor, and the voltage drop within 0.5V belongs to the normal range. Test Charger,Support USB A Charger/USB C Charger. Test Cables, Support Micro-usb Cable/usb a to usb c Cable/usb c to usb c Cable. Test Power Bank/Phone Capacity Tester Power Bank Fully charge the power bank, insert it into the tester, clear the mAh of the tester, connect to Load to quickly discharge to obtain mAh capacity,multiply by 90%. Tester Phone Capacity The phone is fully charged, plugged into the tester, cleared Wh data, connected to Load, quickly discharged, and acquired data. Electricity: Wh/3.75V(Phone battery voltage)=Capacity value X 1000 X90%=Phone mAh capacity.(which is close to the phone battery capacity) Tester Charger/Cable Whether to support Fast charging Tester USB A/USB C Charger,USB A to USB C Cable, USB C to USB C Cable, Micro-usb Cable. Test Charger Insert the tester into the charger, connect Load, adjust the current to 3A, if it supports fast charging, the fifth interface will display "FCP" "FAST". If it does not support fast charging, "FCP" "FAST" will not be displayed. Test charging cable Use a charger that has been tested by the tester to support fast charging, plug the corresponding cable into the charger, and adjust to 3A after connecting the cable. If the fifth interface displays "FCP" and "FAST", it supports fast charging. If it does not support fast charging, "FCP" "FAST" is not displayed. Test various cables / monitor charging status Charge your phone safely and check data in real time Support QC3.0 (3.8 ~ 12V) QC2.0 (5V / 9V / 12V / 20V) Android BC1.2 (5V) Apple 5V / 2.4A and MTK-PE (5V / 7V / 9V / 12V) And other Qualcomm fast charge Test various USB / Type-C chargers Plug the tester into the charger and connect an adjustable current loader, Perform current adjustment and test the current and voltage data of the charger. Let the charger be connected to the current loader for a long time to check the stability of the charger Charge test / 1 X 2 Can meet the output of two devices at the same time, support Type-C devices, intelligent charging scheme, and ensure the safety of the device Laptop Charge Monitoring When you power the notebook, connect a KJ-KayJI test meter to monitor the voltage, current, capacity, power,temperature and other technical parameter information in real time. ## Features - bullet_point[marketplace_id=ATVPDKIKX0DER][language_tag=en_US]#1.value ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07X3HST7V | | Best Sellers Rank | #76,207 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #96 in Multi Testers | | Brand | KJ-KayJI | | Brand Name | KJ-KayJI | | Color | Black | | Customer Reviews | 4.5 out of 5 stars 2,170 Reviews | | Item Dimensions | 3.23 x 2.44 x 0.39 inches | | Item Weight | 34.5 Grams | | Item dimensions L x W x H | 3.23 x 2.44 x 0.39 inches | | Manufacturer | KJ-KayJI | | Measurement Type | Multimeter | | Model | J7-C | | Part Number | J7-C | | Power Source | Corded Electric | | Specification Met | CE, RoHS | | Style | Voltage Tester | | Style Name | Voltage Tester | ## Product Details - **Brand:** KJ-KayJI - **Power Source:** Usb-a,usb-c - **Style:** Power Tester - **Color:** Black - **Item Weight:** 34.5 Grams ## 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) ![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 2](https://m.media-amazon.com/images/I/81yYEgLhhpL.jpg) ![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 3](https://m.media-amazon.com/images/I/71SICiMtUIL.jpg) ![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 4](https://m.media-amazon.com/images/I/71RBimjtXmL.jpg) ![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 5](https://m.media-amazon.com/images/I/81Q1J8qsBeL.jpg) ## Available Options This product comes in different **Set** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by L***N on December 26, 2024* ### ⭐⭐⭐⭐⭐ Review *by G***O on March 6, 2020* ### ⭐⭐⭐⭐ Review *by Y***U on January 6, 2023* ## 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? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.ar/products/154985357-usb-c-tester-kj-kayji-2-in-1-tester-color](https://www.desertcart.com.ar/products/154985357-usb-c-tester-kj-kayji-2-in-1-tester-color) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-05-22*