Online pH Meter

pH300-C1

The T-pH300-C1 Online pH Meter is an advanced microprocessor-based analyser designed for continuous monitoring and control of pH, ORP, and temperature in industrial processes. With features like differential signal measurement, dual relay outputs, multi-parameter display, and high-strength corrosion-resistant enclosure, the system ensures stable, accurate, and reliable performance even in harsh environments. Its color LCD interface and intelligent menu system make it ideal for modern industrial water quality monitoring applications.

Highly stable and accurate measurement using differential signal technology
Reliable operation in harsh and corrosive environments
Simultaneous monitoring of multiple parameters (pH, ORP, temperature)
Improved process control with relay and communication outputs
Enhanced safety and control with password protection

Application-Based Customization

Engineered for Your Process Conditions

Expert Selection Support

Reliable After-Sales Service

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Color LCD display with intelligent, user-friendly menu operation
Supports multiple automatic calibration modes
Differential signal measurement for stable and reliable performance
Manual and automatic temperature compensation
Two independent relay control outputs
Multiple output options: 4–20 mA and RS-485 communication
Simultaneous multi-parameter display: pH/ORP, temperature, current, etc.
Password protection to prevent unauthorized operation
Protective metal-coated outer surface with safety capacitors on the power board for enhanced electromagnetic and magnetic interference resistance
High-strength PPS enclosure offering excellent corrosion resistance
Fully sealed, waterproof rear cover prevents ingress of moisture, dust, and corrosive gases, significantly improving overall protection
Three-terminal waterproof sealing joints isolate input, output, and power supply, ensuring superior stability
High-resilience silicone keypad supports combination key operation for easy and reliable us

Water and wastewater treatment plants
Power generation and cooling water systems
Petrochemical and chemical processing
Metallurgy and mining industries
Food & beverage and pharmaceutical industries
Aquaculture and agriculture
Environmental monitoring

Measurement Range: pH −2 to 16 pH, ORP −1999 to +1999 mV
Measurement Units: pH, mV
Accuracy: pH ±0.02 pH, ORP ±1 mV
Resolution: pH 0.01 pH, ORP 1 mV
Temperature Measurement Range: 0 to 150°C (depending on sensor)
Temperature Resolution: 0.1°C
Temperature Accuracy: ±0.3°C
Temperature Compensation: Manual or automatic
Analog Output: Isolated 4–20 mA current output (load <750 Ω), single output
Communication: RS485 Modbus RTU
Relay Outputs: Two relay contacts, 3A 250VAC / 3A 30VDC
Dimensions: 98 × 98 × 130 mm, panel cut-out size 92.5 × 92.5 mm
Working Conditions: No strong magnetic field interference except geomagnetic field
Operating Temperature: -10°C to 60°C
Relative Humidity: ≤90% RH
Waterproof Rating: IP65
Installation Type: Panel mounted, wall mounted or pipeline installation
Power Supply: 85–265 VAC or 9–36 VDC, power consumption ≤3 W

Comprehensive Services Using This Product

From installation to ongoing support, we’re with you every step of the way.

Thermography

Infrared imaging for proactive maintenance and safety.

Calibration

Precise calibration ensuring measurement accuracy and compliance.

Industries Using This Product

Our solutions are trusted by top industries to drive growth and improve operations.

Water

Reliable solutions for water treatment and quality monitoring in industrial applications.

Power

Optimizing power plant operations with real-time monitoring and predictive maintenance solutions.

Pulp & Paper

Optimizing pulp and paper production with integrated solutions for quality and efficiency.

Food & Beverage

Improving production and safety in food and beverage industries with real-time monitoring.

Chemicals & Fertilisers

Precision solutions for chemical processes, ensuring compliance and operational efficiency.

What Customers Say About Us

Trusted Engineering Support

The team provided clear technical guidance and practical solutions. Execution was smooth and well coordinated throughout.

Mr. Vivek NairGeneral Manager – Operations, Cement Industry

Dependable Technical Partner

Their approach was systematic and aligned with our plant needs. Overall experience with product and service has been positive.

Ms. Kavita RaoSenior Manager – Maintenance, Steel Sector

Application-Focused Solutions

They understood our process conditions before recommending equipment. Support during installation was handled professionally.

Mr. Rohan MehtaProject Lead – Power Plant

Consistent Service Delivery

Product performance has been stable in regular operations. The support team responds in a timely manner.

Mr. Anil DeshmukhInstrumentation Head, Process Manufacturing

Insights & News

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Clients Who Have Transformed Their Operations with This Product

Frequently Asked Questions About This Product

It is used for continuous monitoring and control of pH, ORP, and temperature in industrial processes.

The T-pH300-C1 offers: Wider measurement range (pH -2 to 16), Differential signal measurement (more stable readings), Dual relay outputs, and Color display with advanced interface

Yes. It supports: 4–20 mA outputs, RS485 Modbus communication, and Relay alarms

Yes. It features: IP65 protection, Corrosion-resistant PPS enclosure, and Fully sealed waterproof design

Industries include: Water & wastewater, Power plants, Chemical & petrochemical, Food & pharma, and Environmental monitoring

Download Resources

Online pH Meter

pH300-C1

Still Confused What to Buy?

Need help deciding? Download resources to know more about the product.

Comprehensive Services Using This Product

Thermography

Calibration

Industries Using This Product

Water

Water

Power

Power

Pulp & Paper

Pulp & Paper

Food & Beverage

Food & Beverage

Chemicals & Fertilisers

Chemicals & Fertilisers

What Customers Say About Us

Trusted Engineering Support

Dependable Technical Partner

Application-Focused Solutions

Consistent Service Delivery

Insights & News

Dissolved Oxygen Measurement in Boiler Feedwater Systems

Why Does a Radar Level Transmitter Give False or Unstable Readings?

Clients Who Have Transformed Their Operations with This Product

Frequently Asked Questions About This Product

What is the T-pH300-C1 used for?

What is the advantage over T-PH200-C1?

Can it integrate with PLC/DCS systems?

Is it suitable for harsh environments?

What industries use this analyser?

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