SUS316L Online Digital pH Probe for Wastewater

Constructed with a durable SS 316L stainless steel shell and a cost-saving replaceable electrode head, this smart sensor internally stores calibration data to provide reliable monitoring across a 0 to 14 pH scale in temperatures up to 60°C.

Model： DPH890
Measuring Range： 0~14 pH
MOQ： 1
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Overview
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Overview

Information

Measuring Range: 0~14pH
Resolution: 0.01pH
Accuracy: ±0.02pH
Communication: RS485 MODBUS-RTU

Work Process

Temp Unit: Automatic Temp. compensation
Operating Temp: 0~60℃
Operating Pressure: 6 Bar
Response Time: T90＜10s

Features

Replaceable Sensing Tip & Low Maintenance Cost

The sensing tip of the digital pH probe can be replaced separately instead of the whole sensor, cutting long-term consumable and maintenance expenses.
SS316L Robust Housing with Cleaning Port

Sturdy 316L stainless steel housing offers excellent mechanical strength for harsh field conditions. Integrated cleaning port can connect to air pump or water pump for automatic underwater cleaning, minimizing fouling from sludge and biofilm.
RS485 Modbus Protocol

Standard RS485 Modbus protocol ensures strong anti-interference performance and stable long-distance signal transmission. Easy to integrate with PLC, data loggers and water quality controllers.

Application

The online digital pH probe is suitable for continuous pH monitoring of drinking water, municipal wastewater, aquaculture, circulating cooling water and other general water bodies. The built-in cleaning port is especially suitable for water with high suspended solids and biofouling risk to reduce manual cleaning frequency.

Applicable Scenarios

Water & Wastewater
Aquaculture
Energy & Power Generation
Food & Beverage
Agriculture & Hydroponics
Plating

Standard

Sensor Model	DPH890
Measuring Principle	Electrochemical glass electrode
Measuring Range	pH: 0~14pH Temp.: 0~80℃
Resolution	0.01pH / 0.1℃
Accuracy	±0.02pH
Communication Interface	RS485 Modbus-RTU
Compensation	Automatic temperature compensation (ATC)
Response Time	T₉₀＜10s
Calibration Method	Zero-point calibration, Slope calibration
Operating Temperature	0～60°C
Storage Temperature	0~70℃
Operating Pressure	0～6 bar
Recommended Solution Flow	0.5 m/s ≥ flow rate ≥ 0.001 m/s
Shell Material	Stainless steel 316L
Sensor Dimension	Diameter: 37mm, Shaft length: 270mm
Mounting Thread	1 inch NPT at both ends, immersed or piped installation
Lead interface	Split M16 connector
Ingress Protection	IP68
Power Supply	12V DC
Max. Power Consumption	0.2W
Cable Length	5m as standard (Customizable length available)