--- product_id: 233713553 title: "USB C Tester,KJ-KayJI 2 in 1 Tester IPS Digital Multimeter(2024),Voltage,Cur,Pwr,Resistance,Elec,Temp,Capacity,Tme,Fast Charging,with 3A Discharge Load Support PD2.0/PD3.0,QC2.0/QC3.0,BC1.2" brand: "kj-kayji" price: "AR$77921" currency: ARS in_stock: true reviews_count: 4 category: "Kj Kay Ji" url: https://www.desertcart.com.ar/products/233713553-usb-c-tester-kj-kayji-2-in-1-tester-ips store_origin: AR region: Argentina --- # Supports PD2.0/PD3.0 fast charging protocols 9 IPS color display interfaces for clear data visualization 3A discharge load for accurate power bank capacity testing USB C Tester,KJ-KayJI 2 in 1 Tester IPS Digital Multimeter(2024),Voltage,Cur,Pwr,Resistance,Elec,Temp,Capacity,Tme,Fast Charging,with 3A Discharge Load Support PD2.0/PD3.0,QC2.0/QC3.0,BC1.2 **Brand:** kj-kayji **Price:** AR$77921 **Availability:** ✅ In Stock ## Summary > 🔌 Charge Smarter, Not Harder — The Ultimate USB Power Inspector ## Quick Answers - **What is this?** USB C Tester,KJ-KayJI 2 in 1 Tester IPS Digital Multimeter(2024),Voltage,Cur,Pwr,Resistance,Elec,Temp,Capacity,Tme,Fast Charging,with 3A Discharge Load Support PD2.0/PD3.0,QC2.0/QC3.0,BC1.2 by kj-kayji - **How much does it cost?** AR$77921 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/233713553-usb-c-tester-kj-kayji-2-in-1-tester-ips) ## 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 - • **Fast Charging Certified:** Instantly verify PD2.0/PD3.0, QC2.0/QC3.0, and BC1.2 compatibility to ensure your devices charge at lightning speed. - • **Vivid IPS Color Display:** Switch between 9 crystal-clear interfaces for real-time, easy-to-read diagnostics on your cables and chargers. - • **All-in-One USB Power Detective:** Monitor voltage, current, power, resistance, temperature, capacity, and charging time with precision. - • **Power Bank & Battery Capacity Guru:** Measure true mAh capacity and discharge rates with the included 3A load—know exactly how much juice you have left. - • **Universal Compatibility & Compact Design:** Works seamlessly with all USB-C, USB-A, Micro-USB devices including MacBook Pro, Dell XPS, iPhone, and more—your pocket-sized tech guardian. ## Overview The KJ-KayJI USB C Tester is a cutting-edge 2-in-1 digital multimeter designed for professionals and tech enthusiasts to accurately measure voltage, current, power, resistance, temperature, and capacity across USB-C, USB-A, and Micro-USB devices. Featuring a vibrant 9-interface IPS color display and support for fast charging standards PD2.0/PD3.0, QC2.0/QC3.0, and BC1.2, it enables precise testing of chargers, cables, and power banks with a 3A discharge load. Compact and universally compatible, it’s an essential tool for anyone serious about optimizing their device charging performance and troubleshooting USB power issues. ## Description USB C Tester,KJ-KayJI 2 in 1 Tester IPS Digital Multimeter(2024),Voltage,Cur,Pwr,Resistance,Elec,Temp,Capacity,Tme,Fast Charging,with 3A Discharge Load Support PD2.0/PD3.0,QC2.0/QC3.0,BC1.2: desertcart.com: Tools & Home Improvement Review: Works great! - This is high tech. User friendly. Compact piece of technology at your fingertips and quality is still there. Excellent display screen for voltage ,amps, milliamps and is an excellent quality meter with accurate readings. some things can be programmed for your personal taste of how it should be set. Many different screens. How many amp hours it takes to charge your battery or how many amp hours are left on your battery. It's extremely easy answers to all your electronic questions by reading the instructions to acquire the answer you're looking for. Has different languages but I forgot exactly which ones my apologies. Excellent value for the money. I consider this a must-have item for anybody that's into electronic troubleshooting and observing electrical input, output etc. Beautiful color screen, easy to read, small font. Well laid out display screen. Amazing piece of technology that works when you wanted to with quality behind it. Thanks Review: Great little tester, with some quirks - I use this for testing USB-C chargers, battery packs, and cables. I love that it gives you so much information - not just V and mA like the Satechi, but watts (which is the most important metric overall!) and also total charge (mAh) and total energy (mWh), elapsed time and more. I used it to know that my Pixel 2 XL wasn't getting 9V from the USB-C charger I was using; replacing that gave me much faster charges. The UI is a bit wonky; the "W" for watts is some kind of strange character, but you get used to it. To reset the charge time, total charge, and total energy, each one is a separate reset, so to reset all you have to double-click, then triple-click, then quad-click. The "input" and "output" USB-C ports are labeled backwards, and the "manual" (even the new one) is pretty hopeless. "Resistance" is a bit weird, it's just V/I as far as I can tell, a bit meaningless for this application. (It won't measure your resistors.) And I wish it had a display mode that showed watts in larger font. But on the good side, it's accurate, the display is clear, it has all the info you could want, I like that you can flip it upside down, and also it remembers your settings between uses which is great. And the multiple inputs & outputs are super useful. You can test pretty much anything USB-related with it. Although, it says it can test batteries: not really so much. It comes with alligator-clip cables which you can hook to a voltage source of 3V or more (i.e. not a AA or AAA battery) and it'll measure voltage, but not under load which is what a battery tester needs to do. That's not why I bought it though so I'm good with that. On the other hand, if you have a USB AA/AAA battery charger, you can hook this tester into that and measure the total charge sent to the batteries you're charging. ## 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]】 Included: 1 x USB Tester, 1 x 3A discharge Load, 1 x USB C to USB C Converter. Important Tips:When your USB-C device/Cable cannot be tested/Show, please insert a OTG(Micro-usb) adapter, tester PD charging function will be activated. 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 | B08CXMBB75 | | Best Sellers Rank | #95,699 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #131 in Multi Testers | | Brand Name | KJ-KayJI | | Color | Black | | Customer Reviews | 4.5 4.5 out of 5 stars (2,167) | | Included Components | USB Tester+USB Load | | Item Dimensions | 2.5 x 2 x 0.4 inches | | Manufacturer | KJ-KayJI | | Measurement Type | Multimeter | | Minimum Operating Voltage | 5 Volts | | Model | KJ-KayJI | | Power Source | Battery Powered | | Specification Met | Pd2.0/Pd3.0, Qc2.0/Qc3.0, Bc1.2, Nist Traceable | | Style Name | USB Load Tester | ## Product Details - **Brand:** KJ-KayJI - **Color:** Black - **Item dimensions L x W x H:** 2.5 x 2 x 0.4 inches - **Power Source:** Battery Powered - **Style:** USB Load Tester ## Images ![USB C Tester,KJ-KayJI 2 in 1 Tester IPS Digital Multimeter(2024),Voltage,Cur,Pwr,Resistance,Elec,Temp,Capacity,Tme,Fast Charging,with 3A Discharge Load Support PD2.0/PD3.0,QC2.0/QC3.0,BC1.2 - Image 1](https://m.media-amazon.com/images/I/71kOXWIBd8L.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works great! *by L***N on December 26, 2024* This is high tech. User friendly. Compact piece of technology at your fingertips and quality is still there. Excellent display screen for voltage ,amps, milliamps and is an excellent quality meter with accurate readings. some things can be programmed for your personal taste of how it should be set. Many different screens. How many amp hours it takes to charge your battery or how many amp hours are left on your battery. It's extremely easy answers to all your electronic questions by reading the instructions to acquire the answer you're looking for. Has different languages but I forgot exactly which ones my apologies. Excellent value for the money. I consider this a must-have item for anybody that's into electronic troubleshooting and observing electrical input, output etc. Beautiful color screen, easy to read, small font. Well laid out display screen. Amazing piece of technology that works when you wanted to with quality behind it. Thanks ### ⭐⭐⭐⭐⭐ Great little tester, with some quirks *by G***O on March 6, 2020* I use this for testing USB-C chargers, battery packs, and cables. I love that it gives you so much information - not just V and mA like the Satechi, but watts (which is the most important metric overall!) and also total charge (mAh) and total energy (mWh), elapsed time and more. I used it to know that my Pixel 2 XL wasn't getting 9V from the USB-C charger I was using; replacing that gave me much faster charges. The UI is a bit wonky; the "W" for watts is some kind of strange character, but you get used to it. To reset the charge time, total charge, and total energy, each one is a separate reset, so to reset all you have to double-click, then triple-click, then quad-click. The "input" and "output" USB-C ports are labeled backwards, and the "manual" (even the new one) is pretty hopeless. "Resistance" is a bit weird, it's just V/I as far as I can tell, a bit meaningless for this application. (It won't measure your resistors.) And I wish it had a display mode that showed watts in larger font. But on the good side, it's accurate, the display is clear, it has all the info you could want, I like that you can flip it upside down, and also it remembers your settings between uses which is great. And the multiple inputs & outputs are super useful. You can test pretty much anything USB-related with it. Although, it says it can test batteries: not really so much. It comes with alligator-clip cables which you can hook to a voltage source of 3V or more (i.e. not a AA or AAA battery) and it'll measure voltage, but not under load which is what a battery tester needs to do. That's not why I bought it though so I'm good with that. On the other hand, if you have a USB AA/AAA battery charger, you can hook this tester into that and measure the total charge sent to the batteries you're charging. ### ⭐⭐⭐⭐ Looks like a defective unit - UPDATE - Working unit! *by Y***U on January 6, 2023* I was very interested in this meter to verify power output of the numerous USB charging receptacles installed around my house, as well as fitness of the numerous USB charging cables. However, after reading the poor instruction sheet which has no diagnostic section I am going to have to return this unit. As picture shows, the unit displays voltage but no reading on amperage. Same across all charging ports tested. *** UPDATE *** Rack it up to my ignorance and also the quality of the product instructions, but the reason the image is showing 0.00 amps is because there is no load on the opposite side of the meter. When phone, tablet, laptop or other device is connected to the meter, it will register amperage, just fine. The product also has a nice feature of 180 degree rotation of the display. I would also mention that some individuals will find the display dimly lit. I had to use a magnifying glass or take a phone picture of the display to read some of the display modes. All in all, it is worth purchasing this meter, if you are curious about the fitness of your charging blocks, wall charging ports on A/C receptacles with USB chargering ports. ## Frequently Bought Together - USB C Tester,KJ-KayJI 2 in 1 Tester IPS Digital Multimeter(2024),Voltage,Cur,Pwr,Resistance,Elec,Temp,Capacity,Tme,Fast Charging,with 3A Discharge Load 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 - DROK USB Load Tester, Electronic Load Test Resistor Module 25W LD25 USB and Type C Interface Discharge Adjustable Constant Current 0.25A-4A Intelligent Temperature Control with Cooling Fan --- ## 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.com.ar/products/233713553-usb-c-tester-kj-kayji-2-in-1-tester-ips](https://www.desertcart.com.ar/products/233713553-usb-c-tester-kj-kayji-2-in-1-tester-ips) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-05-17*