KWS-MX23 Professional USB Tester | Voltage, Current & Power Meter

Upgrade your interface with crisp visuals.
This 12864 Graphic LCD Module delivers a sharp 128x64 pixel resolution on a stunning blue backlight with white pixels. Built with the versatile ST7920 controller, it supports both Parallel and SPI Serial modes, allowing you to save precious I/O pins on your Arduino or microcontroller. Perfect for displaying complex graphics, charts, and custom text.

• High-Res Graphic Display: 128x64 dot matrix resolution enables text, images, and graph rendering.
• Crisp Visibility: Deep blue background with bright white pixels provides excellent contrast and aesthetics.
• Dual Interface Modes: Supports both 6800 8-bit Parallel and Serial (SPI) modes (Selectable via Pin 15 PSB).
• Standard 5V Logic: Seamlessly compatible with Arduino UNO, Mega, and other 5V logic controllers.
• Adjustable Contrast: Dedicated V0 pin allows for precise brightness and contrast tuning via potentiometer.
• Robust Mounting: Four corner mounting holes (3mm) for secure installation in enclosures.

The Health Check Your Electronics Deserve

In an era of "Fast Charging," not all cables and chargers are created equal. The KWS-MX23 USB Tester is the ultimate diagnostic tool for tech enthusiasts, gamers, and professionals who demand optimal performance from their devices.

Precision Monitoring for Every Charge

Plug the KWS-MX23 into any USB port, and it instantly becomes a powerful command center. It visualizes critical data—Voltage (V), Current (A), Power (W), and Capacity (mAh/mWh)—allowing you to identify faulty adapters or inferior cables that could damage your expensive electronics. With support for up to 30V and 12A (Peak), it handles everything from standard smartphones to high-power USB devices.

Vivid IPS Display with Multi-Page Views

Unlike basic testers with monochrome segments, the KWS-MX23 features a crisp 1.06-inch IPS HD color screen. With a single click, you can toggle between standard measurement views, statistical data summaries, and curve measurement interfaces. The 160-degree wide viewing angle ensures you can read the data clearly, no matter how your charger is positioned.

Professional-Grade Data Logging

Don't just watch the charge; record it. This device tracks the total capacity (mAh) delivered over time, making it perfect for verifying the advertised capacity of power banks (external batteries). It also features intelligent power-off memory, saving your data even when unplugged.

• Local delivery within Hong Kong and in-store pickup.​
• Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.​
• Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).​
• Estimated delivery time: 1–3 business days after dispatch (Hong Kong).​
• In-store pickup details (location and time) will be confirmed by email or phone message.​
• Delivery times are estimates and may be affected by weather or unforeseen circumstances.​