Digital pH water sensor | real-time modular design
- Eco-Friendly – Electrodynamic measurement with zero pollution
- Rapid Response – Measures in just 1 second
- Smart Connectivity – RS485 output for seamless system integration
- Rugged Design – IP68 rated for harsh conditions
- Energy Efficient – Battery operable for flexible deployment
Overview
Engineered for accuracy and reliability, the Googoltech pH sensor delivers ±0.01pH precision across the full 0-14pH range, making it ideal for demanding water quality monitoring in wastewater treatment, drinking water systems, and aquaculture.
Our innovative modular design allows for easy maintenance—simply replace the pH glass electrode without repeat installation , reducing long-term costs by up to 50%. The compact, split-body construction ensures hassle-free servicing while maintaining robust performance.
4 types of connection available
The sensors are available with different tail connections so that customers can choose according to their needs.

WQS-pH-S01
IP65
5 pole aviation plug, cable length 2m with waterproof connection thread

WQS-pH-S11
IP68
Cable extending directly, cable length 6m with waterproof connection thread

WQS-pH-P01
IP65
5 pole aviation plug, cable length 2m

WQS-pH-P11
IP68
Cable extending directly, cable length 6m
Installation methods

flow cell
Install the conductivity electrode into the flow cell as shown below. Then secure the flow cell to the backing plate

Submerged
Sensors with an extended cable on the end can be directly submerged in water
Principle | Glass electrode method |
Dimension | φ25×228 mm |
Power requirements | DC+12 V ~ +24 V |
Operating temperature | 2 to 50 °C |
Pressure | 1 bar |
Installation | Submerged, flow-through |
Sample flow rate | 200-500 mL/min |
Communication | RS485(Modbus RTU), Bluetooth |
Parameter | Range | Resolution | Accuracy |
pH | 0-14 pH | 0.01 pH | ±0.1 pH |
Temperature | 2-50℃ | 0.1 °C | ±1 °C |