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⚡ Power up your USB IQ — test smarter, charge safer!
The KJ-KayJI USB C Tester is a professional-grade digital multimeter and USB load tester featuring an upgraded IPS color screen with 8 display modes. It supports up to 32V/5.1A input and offers a 3A adjustable constant current load for comprehensive USB device diagnostics. Compatible with the latest USB PD and QC protocols, it accurately measures voltage, current, power, resistance, temperature, and capacity, making it ideal for testing power banks, chargers, and USB-C devices. Advanced safety protections ensure device security during testing, while its compact design fits perfectly into any tech-savvy professional’s toolkit.









| ASIN | B08CXMBB75 |
| Brand | KJ-KayJI |
| Brand Name | KJ-KayJI |
| Color | Black |
| Colour | Black |
| Customer Reviews | 4.4 out of 5 stars 267 Reviews |
| Included Components | USB Tester+USB Load |
| Item Dimensions | 8.2 x 6.2 x 1 centimeters |
| Item dimensions L x W x H | 8.2 x 6.2 x 1 centimeters |
| Manufacturer | KJ-KayJI |
| Measurement Type | Multimeter |
| Min. Operating voltage | 12 Volts |
| Minimum Operating Voltage | 12 Volts |
| Model | KJ-KayJI |
| Part Number | J7-C1 |
| Power Source | Usb-a,usb-c |
| Power source | Usb-a,usb-c |
| Style | USB Tester+USB Load |
| Style Name | USB Tester+USB Load |
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