1. Introduction
The KWS-X1 is a versatile Type-C voltage and current detection meter, also functioning as a fast charging trigger meter. It features an HD IPS display and a durable CNC metal casing, designed for real-time monitoring and testing of various fast charging protocols. This manual provides essential information for setting up, operating, and maintaining your device.
2. Key Features
- Durable Construction: CNC metal case, dustproof and drop-proof.
- High-Definition Display: HD IPS display for clear, real-time charging power detection.
- Enhanced Functionality: Three distinct display pages for comprehensive data visualization.
- Multi-functionality: Supports curve measurement, ripple measurement, and advanced protocol testing (automatic and PD single decoy).
- Reliable & Safe: Highly reliable and safe Type-C voltage and current testing meter.
- Broad Compatibility: Fully compatible with a wide range of fast charging protocols including PD, Qualcomm QC3.0/4.0, MTK, FCP, SCP, AFC, PE, DASH, VOOC, and SuperVooc.
- Automatic Protocol Detection: Simplifies testing by automatically identifying charging protocols.
- 240W Fast Charging Support: Newly upgraded to support 240W fast charging detection.
- Portable Design: Compact and portable, ideal for on-the-go use.
3. Setup Instructions
To begin using your KWS-X1 tester, simply connect it inline between your power source (charger) and the device you wish to test (e.g., smartphone, laptop) using compatible Type-C cables. The device will power on automatically and display real-time data.

4. Operating Instructions
4.1 General Operation
The KWS-X1 features several buttons for navigation and control:
- OK Button: Used to confirm selections and navigate through menus.
- BACK Button: Used to go back to the previous menu or screen.
- Arrow Buttons (Up/Down): Used to scroll through options in menus.
- OFF/ON Switch: Controls the power to the device.
4.2 Display Pages
The KWS-X1 offers three main display pages, which can be cycled through using the navigation buttons:
- Voltage & Current Display: Shows real-time voltage (V), current (A), and power (W), along with detected charging protocol information.
- Curve Measurement: Visualizes real-time voltage and current fluctuations over time.
- Protocol Test: Dedicated screen for initiating automatic protocol detection and advanced testing.
4.3 Ripple Measurement
The ripple measurement function allows you to analyze the stability of the power output. Key indicators include:
- Status Indication: Real-time measurement or pause measurement (confirm key to switch status).
- Sampling Speed Display: Indicates the speed of data acquisition (+/- switch speed).
- Plotting Curve Area: Displays the graphical representation of voltage and current ripples.
- Real-time Voltage and Current Display: Shows instantaneous values (can be paused).
- 100ms Average Ripple: Real-time display following VBUS voltage changes.

4.4 Protocol Testing - Automated Testing
This mode automatically detects and displays the fast charging protocols supported by the connected charger and device.
- Status Indication: Displays 'wait for prompt' then 'finished' upon completion.
- PD Status: Indicates PD2.0-3.1 Fixed AVS EPR.
- PDO Max Gear & Power: Shows the maximum power delivery object (PDO) gear and power.
- PPS Support: Indicates whether Programmable Power Supply (PPS) is supported and its adjustable gear power.
- Fixed Gear Voltage: Displays supported fixed voltages and the range of adjustable PDO voltage groups.
- QC2.0/QC3.0 Status: Shows fixed slot support status for QC2.0 and adjustable gear maximum trigger voltage (200mV step) for QC3.0.
- PD Protocol Version: Indicates the PD protocol version and special information for specific protocols (e.g., Xiaomi private protocols).

4.5 Protocol Testing - PD Single Decoy
This advanced mode allows for specific PD protocol triggering. Note that the selected gear will not be triggered immediately; you must press the confirm key again to activate it.
- Display Synchronization: Red and green colors on the display synchronize with the logic.
- Protocol Version & Stalls: Displays detailed protocol version and number of stalls (usually defaults to PDO in support of AVS EPR expansion).
- Current Stall Display: Shows the current stall.
- Real-time Current & Direction: Displays real-time current and its direction.
- Supported Gear Enumeration: If more than the maximum number of display items, the interval will automatically merge to ensure data is not lost.
- Selected Gear Information: Provides details about the chosen power delivery gear.

4.6 E-Marker Data Cable Inspection
The KWS-X1 supports detection of E-Marker data cables, providing information on data line, voltage, current, and other parameters. This is particularly useful for verifying the capabilities of 240W fast charging cables.

5. Specifications
| Parameter | Value |
|---|---|
| Absolute Withstand Voltage | 0 ~ 40V |
| Absolute Current | 0 ~ 16A |
| Absolute Power | 0 ~ 240W (typical: 0.0-140.0W) |
| Measuring Voltage | 3.3 ~ 40V (typical: 4-30V) |
| Measuring Current | 0 ~ 12A |
| Measuring Power | 280W |
| Temperature Measurement Range | 0 ~ 99℃ |
| Sampling Frequency | 2 ~ 5MHz |
| Product Size | 54.96 x 24.45 x 11.15 mm |

6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the device. Avoid using liquids or abrasive cleaners.
- Storage: Store the KWS-X1 in a cool, dry place away from direct sunlight and extreme temperatures.
- Handling: Handle the device with care to prevent physical damage. The CNC metal casing provides good protection, but excessive force or drops can still cause damage.
- Disassembly: Do not attempt to disassemble or repair the device yourself. This may void any potential warranty and could lead to damage or injury.
7. Troubleshooting
- Device not turning on: Ensure the KWS-X1 is properly connected inline between a powered source (charger) and a device (load). It draws power from the connection.
- Inaccurate readings: Check all cable connections to ensure they are secure. Ensure the power source and the connected device are functioning correctly. Try using different cables or power sources to isolate the issue.
- Display issues (e.g., frozen screen, no data): Disconnect the KWS-X1 from both the power source and the load, wait a few seconds, and then reconnect it. If issues persist, contact customer support.
- Protocol detection failure: Ensure the connected charger and device both support fast charging protocols. Some older devices or chargers may not be compatible.
8. User Tips
- Connect First: For the most accurate protocol detection, always connect the KWS-X1 between the charger and the device before initiating any tests.
- Explore Display Modes: Utilize all three display pages to gain a comprehensive understanding of your charging setup. The real-time values, curve graphs, and detailed protocol information each offer unique insights.
- Cable Testing: Use the E-Marker data cable inspection feature to verify if your USB-C cables support high power delivery, especially for 240W charging.
- Portability: Its compact size makes it an excellent tool for diagnosing charging issues on the go. Keep it in your tech bag for quick checks.
9. Warranty and Support
For warranty information and technical support, please refer to the seller's official website or contact their customer service directly. Keep your purchase receipt as proof of purchase.





