Online pH Sensor Manufacturer for Water Quality Monitoring
LOOTEST is an online pH sensor manufacturer for B2B water quality monitoring projects. We supply pH sensors, pH electrodes, pH controllers and transmitters for wastewater treatment, drinking water, industrial process water, aquaculture, cooling towers, swimming pools and environmental monitoring.
For distributors, system integrators, OEM equipment builders and project contractors, LOOTEST can support bulk supply, OEM/ODM cooperation and R&D customization based on water condition, installation method, signal output and controller requirements. If your project also requires oxidation-reduction monitoring, please see the separate ORP sensor category.
- Online pH sensor supply for wastewater, process water, drinking water, aquaculture and water treatment systems.
- pH electrode options for clean water, dirty water, sewage, chemical dosing and industrial monitoring conditions.
- RS485 Modbus, 4-20mA and relay output options for PLC, SCADA, dosing pumps and local display controllers.
- OEM, ODM, bulk supply and R&D support for distributors, system integrators and project-based pH monitoring requirements.
pH Sensor Manufacturing
Choose a LOOTEST pH sensor or controller according to the water condition, installation method, signal output and maintenance requirement. As a B2B pH sensor supplier, LOOTEST can provide standard models, replacement pH electrodes, controller combinations and project-based supply for water treatment companies, distributors, OEM partners and system integrators.
Select pH products by application
- Wastewater pH sensors: for sewage treatment, neutralization tanks, chemical dosing, discharge monitoring and high-fouling water conditions.
- Industrial pH electrodes: for process water, cooling towers, boiler feedwater, chemical processing and water reuse systems.
- Digital RS485 pH sensors: for PLC, SCADA, remote monitoring and multi-parameter water quality systems.
- 4-20mA pH transmitters: for analog industrial control loops and dosing pump control.
- pH controllers and monitors: for local display, alarm output, relay control and integrated water treatment panels.
- OEM/ODM pH sensor supply: for private-label projects, equipment matching, cable length adjustment, housing selection and R&D support.
Related water quality parameters
Many pH monitoring projects also require ORP sensors, conductivity/TDS sensors, turbidity sensors, dissolved oxygen sensors or MLSS/TSS sensors. LOOTEST can help match the sensor combination to your process or B2B project requirement.
How to choose an online pH sensor supplier
For B2B purchasing, sensor selection should consider both technical fit and supply capability. Confirm the target water type, pH range, temperature, installation position, output signal, calibration method and cleaning requirement before choosing a model. For distributors and OEM partners, also confirm sample availability, bulk supply capacity, customization options and after-sales support.
- Wastewater treatment: choose a durable pH sensor structure that can handle suspended solids, coating and frequent cleaning.
- Drinking water and pools: pH sensors are often used with residual chlorine monitoring to support stable disinfection control.
- Industrial process water: check temperature, chemical compatibility, pressure and installation position before choosing a pH electrode.
- Remote monitoring: digital RS485 pH sensors are useful when pH data needs to connect to PLC, SCADA or cloud monitoring systems.
FAQ for pH sensors and B2B supply
What is an online pH sensor?
An online pH sensor is installed in a tank, pipeline or monitoring station to measure water acidity and alkalinity continuously. It is commonly used in wastewater, drinking water, process water, aquaculture and environmental monitoring.
Can LOOTEST provide OEM or ODM pH sensor solutions?
Yes. LOOTEST can support OEM/ODM cooperation, model matching, housing selection, cable length options, signal output configuration and R&D support for B2B water quality monitoring projects.
When should I choose a digital RS485 pH sensor?
Choose a digital RS485 pH sensor when the project needs Modbus communication, long-distance signal transmission, PLC integration or multi-parameter water quality monitoring.
Why does a pH sensor drift in wastewater?
Drift is often caused by coating, fouling, aging of the reference system, temperature changes or insufficient calibration. A suitable sensor structure and regular maintenance plan can reduce drift.
Can LOOTEST recommend a pH sensor for my project?
Yes. Share your water type, pH range, temperature, installation method, cable length, output signal, controller requirement and expected purchase quantity, and LOOTEST can recommend a suitable pH sensor or controller.
Need a pH sensor manufacturer?
Send us your water type, pH range, temperature, installation method, cable length, signal output requirement and expected purchase quantity. LOOTEST will recommend suitable online pH sensors, electrodes or controllers for your B2B application.
Request a pH Sensor Supply Recommendation
