Water quality sensor-Digital pH sensor

GEC-PH485 Digital pH Sensor | GAIMC

Product Overview

GEC-PH485 digital sensor is a new generation of intelligent water quality detection digital sensor independently developed by Xi'an Gavin Electronic Technology Co., Ltd. It operates without a host, directly measuring pH value and temperature value in solutions, and sends output 4-20mA signals to backend equipment.

The sensor can also be connected to RS485 interface and connected to computers through MODBUS protocol for monitoring and recording. It features high accuracy, good stability, long service life, rapid response, and low maintenance costs.

Widely used in thermal power, chemical based fertilizer, metallurgy, environmental protection, pharmaceutical, biochemical, food and water industries for continuous pH and temperature monitoring.

Key Features

🎯

High Accuracy

±0.02pH measurement accuracy with excellent stability for precise water quality detection.

🔌

Direct Output

Direct output of RS485 or 4-20mA signals, no host controller required for operation.

🌡️

Auto Compensation

Automatic temperature compensation for accurate pH measurements across varying temperatures.

🛡️

IP68 Protection

IP68 protection grade ensures reliable operation in harsh industrial environments.

⚙️

Remote Configuration

Remote setting of parameters and calibration of electrodes through digital interface.

🔋

Power-down Protection

>10 years power-down protection maintains calibration and configuration settings.

Technical Specifications

Parameter	Specification
Measuring Range	0~14pH
Accuracy	±0.02pH
Temperature Range	0~60℃
Temperature Accuracy	±0.3℃
Stability	≤0.01pH/24h
Output	4-20mA, RS485(Modbus)
Power Supply	12VDC/24VDC
Protection Grade	IP68

Type Selection

SEC-pH485	Code	Option	Note
Output	0	No Output	Basic sensor only
Output	4	4-20mA Output	Analog signal output
Communication	0	No Communication	Basic version
Communication	R	RS485 Communication	Digital Modbus protocol
Power Supply	12	12VDC	Standard DC power
Power Supply	24	24VDC	Industrial standard
Cable Length	05	5m Standard	Default length
Cable Length	**	Custom Length	Customized per requirements

Ordering Example

GWQ-pH485-0-R-24-15

GWQ-pH485 digital pH electrode, No output, RS485, 24V, 15m cable

Core Applications

🏭

Thermal Power Plants

Continuous monitoring of pH in cooling water systems, boiler feedwater, and effluent discharge.

🧪

Chemical & Fertilizer

pH monitoring in chemical reaction processes, fertilizer production, and wastewater treatment.

🌿

Environmental Protection

Water quality monitoring in rivers, lakes, wastewater treatment plants, and environmental compliance.

🍶

Food & Beverage

pH control in beverage production, food processing water, and quality assurance testing.

FAQ

What is the measurement accuracy of GEC-PH485?

GEC-PH485 offers high accuracy of ±0.02pH with excellent stability of ≤0.01pH/24h for reliable water quality monitoring.

Does it require a separate controller?

No, GEC-PH485 is a digital sensor that operates without a host controller. It directly outputs 4-20mA signals or RS485 communication.

What temperature range does it support?

The sensor supports temperature measurement range of 0~60℃ with automatic temperature compensation for accurate pH readings.

What communication protocols are supported?

GEC-PH485 supports both 4-20mA analog output and RS485 digital communication with MODBUS protocol for flexible integration.

What is the protection rating?

The sensor features IP68 protection grade, making it suitable for harsh industrial environments and submerged applications.

Digital Water Quality Monitoring Solution

Customize the GEC-PH485 digital pH sensor for your specific application—contact us for output selection, communication interface, and cable length configuration.

Get Custom Solution

Online Message

Have questions? Need a quote? We are ready to help! Fill out the form and a member of our sales team will contact you to discuss your requirements. You can also give us a call at (86)177-9158-1665.

GEC-pH485

Related Products

GWQ-pH6.0

Online pH controller
View More

GEC-EC485

Digital conductivity sensor
View More

GEC-DO485

Digital dissolved oxygen sensor
View More

FILE DOWNLOAD

HOT KEYWORDS

GEC-PH485 Digital pH Sensor Intelligent Water Quality ±0.02pH Accuracy 0~14pH Range 0~60℃ Temp Range ≤0.01pH/24h Stability ±0.3℃ Temp Accuracy Direct RS485 Output 4-20mA Analog Output MODBUS Protocol No Host Required Remote Configuration IP68 Protection 12/24VDC Power Submersible Design Thermal Power Chemical Fertilizer Metallurgy Industry Environmental Protection Pharmaceutical Biochemical Food Industry Water Treatment 5m Cable Standard Custom Cable Length Auto Temp Compensation 10yr Power-down Protection Low Maintenance Rapid Response

GEC-pH485

Digital pH sensor