PH Digital Sensor
This pH digital sensor adopts high-performance differential pH measuring principle, effectively resisting interference from complex water medium. Built-in digital transmitter and temperature sensing element, it realizes automatic ATC compensation, outputs calibrated pH data directly without additional converter. It supports RS485 Modbus-RTU standard communication, optional 4-20mA analog signal, easy access to PLC/DCS/IoT system. The whole probe is IP68 submersible, 3/4" NPT thread mounting, suitable for immersion, pipeline inline and flow-cell installation. Ideal for continuous online pH monitoring in municipal water plants, industrial sewage discharge, chemical process water, aquaculture and surface water environmental protection monitoring.
This pH digital sensor is an integrated online water quality probe with built in signal processing module.It adopts high quality glass pH sensitive electrode, supports automatic temperature compensation.Standard RS485 Modbus RTU output, plug and play, IP68 waterproof.It realizes long-term continuous monitoring of pH and ORP in various industrial water bodies.
Key Advantages
1. Digital integrated design, stable signal, strong anti-interference
2. High precision ±0.02 pH, accurate water quality pH detection
3. ATC automatic temperature compensation, adapt variable water temperature
4. IP68 submersible, suitable for harsh on-site water environment
5. Standard industrial protocol, easy system integration & installation
Application Fields
Municipal drinking water & tap water pipeline monitoring
Industrial wastewater treatment & discharge monitoring
Aquaculture water quality pH control
Chemical, pharmaceutical, food beverage process water
Surface river, lake, reservoir environmental monitoring
Cooling circulating water & RO pure water system
Technical Parameters
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pH |
Range |
0.00pH～14.00pH |
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Resolution |
0.01 pH |
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Accuracy |
±0.1 pH |
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Temperature |
Range |
-10.0～110.0℃ |
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Resolution |
0.1℃ |
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Accuracy |
±0.5℃ |
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Sensor Type |
Thermistor TH10K |
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Compensation |
Automatic/Manual |
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Data Transmission |
RS-485 |
MODBUS-RTU Communication Protocol |
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Other Parameters |
Power Supply |
9~27VDC |
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Isolation |
2500Vrms |
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Power Consumption |
Approx. 0.5W |
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Material |
PPS Housing |
Product Application
