User Manual
Thank you for choosing the Bewinner PC101 Portable Water Quality Tester. This electronic device is designed for quick and accurate measurement of chlorine and pH levels in swimming pools and spas. Its large LCD screen provides clear readings, making water quality analysis straightforward and efficient. Please read this manual thoroughly before operation to ensure proper use and longevity of your device.
To prevent personal injury or equipment damage, please observe the following safety precautions:

Image: A warning label indicating not to disassemble, modify, or repair the product.
The Bewinner PC101 Water Quality Tester consists of a main unit with an LCD display and a probe with two metal rods connected by a coiled cable.

Image: The Bewinner PC101 Water Quality Tester showing the main unit and the attached probe.

Image: A close-up view of the tester's LCD display, showing the pH and Chlorine scales.

Image: A detailed view of the two metal probes at the end of the tester's cable.
Before using the Bewinner PC101 for the first time, or any time you use it to test the pH level, it is crucial to calibrate the device. This ensures accurate readings.
The device requires 1x AA battery (not included). Open the battery compartment on the back of the main unit and insert the battery, observing the correct polarity.

Image: The back of the Bewinner PC101 tester, showing the battery compartment and quick reference guide.
The pH calibration is essential for accurate measurements. You will need a reliable reference pH measurement (e.g., from a liquid test kit or test strips) of your pool or spa water.
Note: The manufacturer recommends adjusting the tester to the "adjustment point" (calibrating) before each use for pH measurement to ensure optimal accuracy. The pH measurement range for this device is 7.2-7.8.
Follow these steps to measure chlorine and pH levels in your pool or spa water.

Image: The Bewinner PC101 tester being used at the edge of a swimming pool.

Image: The Bewinner PC101 tester positioned with a swimming pool lane in the background.

Image: The Bewinner PC101 tester surrounded by icons representing various water sources like swimming pools, spring water, sauna centers, and spas, indicating its wide application.
Proper maintenance will extend the life of your Bewinner PC101 tester.
| Problem | Possible Cause | Solution |
|---|---|---|
| No display or dim display | Low or dead battery; incorrect battery installation. | Replace the AA battery, ensuring correct polarity. |
| Inaccurate or inconsistent readings | Improper calibration; dirty probes; water temperature outside optimal range; device malfunction. | Recalibrate the pH (Section 4.2). Clean the probes thoroughly. Ensure water temperature is within recommended operating range. If issues persist, contact customer support. |
| Needle does not move | Switch not in correct position (CL or PH); probes not fully immersed; internal fault. | Ensure switch is set to CL or PH. Ensure probes are immersed up to the black plastic level. If still unresponsive, contact customer support. |
Bewinner is committed to providing quality products. This product comes with a standard manufacturer's warranty. For specific warranty terms and conditions, please refer to the documentation included with your purchase or visit the official Bewinner website.
If you encounter any issues or have questions regarding your Bewinner PC101 Water Quality Tester, please contact Bewinner customer support. Your satisfaction is our main concern.
![]() |
Bewinner Portable Tri-Screen for Laptop User Guide (15 inch) User guide for the Bewinner Portable Tri-Screen for Laptop (15 inch), covering setup, connection methods, display configuration, OSD settings, and technical specifications. Compatible with 15-17 inch laptops. |
![]() |
Genkinno P1 SE Robotic Pool Cleaner User Manual User manual for the Genkinno P1 SE Robotic Pool Cleaner, providing instructions on setup, operation, maintenance, and specifications. |
![]() |
ASIUR 10-1 inch Tablet PC User Manual User manual for the ASIUR 10-1 inch Tablet PC, covering product overview, charging, connecting to Wi-Fi and computers, screen basics, and reset/restore functions. Includes FCC statement. |
![]() |
PC101 Pure Control Remote Quick Setup Guide A quick setup guide for the PC101 Pure Control Remote from Continu.us, providing instructions on how to program the remote to work with televisions using automatic search, quick search, learning mode, or manual setup. Includes a comprehensive list of remote codes for various brands. |
![]() |
Avantco PC101 1 Gallon Electric Countertop Pasta Cooker - 120V, 1500W Detailed specifications and features for the Avantco PC101 electric countertop pasta cooker, a 1-gallon, 1500W unit designed for commercial kitchens. Includes technical data, certifications, and operational notes. |