Water PH Temperature Transmitter Detection RS485 Sensor

Specifications

• Product Type: Water pH and temperature transmitter sensor
• Communication: RS485 Modbus RTU
• Application: Water quality monitoring and industrial liquid analysis

Measurement Parameters

• pH Range: 0 to 14 pH
• pH Accuracy: typically ±0.1 pH
• Temperature Range: 0°C to 80°C (varies by probe type)
• Temperature Accuracy: typically ±0.5°C
• Temperature Compensation: Automatic (ATC supported)

Electrical Characteristics

• Power Supply: 12 V DC to 24 V DC
• Power Consumption: Low power (typically < 1 W)
• Signal Output: RS485 differential signal
• Protocol: Modbus RTU

Communication

• Interface: RS485
• Baud Rate: typically 9600 bps (configurable in some models)
• Data Format: 8N1 standard Modbus format
• Addressing: Multi-device support via Modbus ID

Probe / Sensor Characteristics

• pH Electrode Type: Glass electrode
• Temperature Sensor: Integrated or separate probe
• Cable Length: typically 1 m to 10 m (customizable)
• Waterproof Rating: IP65 to IP68 (depending on probe type)

Mechanical Characteristics

• Sensor Body Material: PVC / ABS / industrial-grade plastic
• Probe Housing: corrosion-resistant material
• Installation Type: immersion / inline/submersible

Environmental

• Operating Temperature: 0°C to 60°C (electronics module)
• Storage Temperature: -10°C to 70°C
• Humidity: up to 95% RH (non-condensing)

Performance

• Stable long-term pH measurement in water systems
• Built-in temperature compensation improves accuracy
• Suitable for continuous monitoring applications

Applications

• Water treatment plants
• Hydroponics and agriculture systems
• Aquaculture and fish farming
• Industrial wastewater monitoring
• Environmental water quality monitoring

Important Notes

• pH probe requires periodic calibration using standard buffer solutions
• Avoid dry storage of the pH electrode for long periods (use storage solution)
• Proper grounding and shielding are recommended for RS485 communication
• Do not exceed the specified temperature range for the probe or electronics
• Ensure correct polarity and Modbus address configuration before use

CWT-BL water PH sensor manual