Digital dissolved oxygen sensor

GEC-DO485 Digital Dissolved Oxygen Sensor | GAIMC

Product Overview

The GEC-DO485 is a new generation intelligent digital dissolved oxygen sensor independently developed by GAIMC, which supports host-free direct measurement. It can real-time detect dissolved oxygen and temperature values in solutions, and output 4-20mA analog signals to back-end equipment for data transmission.

Equipped with an RS485 interface, it can connect to computers via MODBUS protocol to realize remote monitoring and recording. With the characteristics of high precision, good stability, long service life, fast response and low maintenance cost, it is widely used in continuous DO and temperature monitoring of thermal power, chemical fertilizer, metallurgy, environmental protection, pharmaceutical, biochemical, food and tap water industries.

GEC-DO485 Digital Dissolved Oxygen Sensor Main Body

GEC-DO485 DO Measurement Application Scene

Key Features

🎯

High Accuracy & Stability

Superior measurement precision with stable data output, meets industrial on-site monitoring requirements.

🔬

Dual Detection Methods

Supports Primary Battery Method and fluorescence method for diverse application scenarios.

📡

Dual Signal Output

Direct output 4-20mA analog signal and RS485 digital signal, flexible connection with equipment.

🌡️

Automatic Temperature Compensation

Real-time ATC ensures accurate DO measurement under different temperature conditions.

🛡️

IP68 High Protection

IP68 waterproof and dustproof grade, suitable for harsh industrial underwater working environment.

🔧

Two-point Calibration

Supports two-point calibration for higher measurement accuracy, with 10+ years power-off protection.

Technical Specifications

Item	Details
Model	GEC-DO485
Measuring range (DO)	0 ~ 20 mg/L
Accuracy	±0.5%F.S(Primary Battery), ±2%F.S(fluorescence)
Temperature range	0 ~ 60℃(Primary Battery), 0 ~ 45℃(fluorescence)
Temperature accuracy	±0.3℃(Primary Battery), ±0.5℃(fluorescence)
Signal Output	4-20mA, RS485 (Modbus protocol)
Power supply	12VDC / 24VDC
Protection grade	IP68
Installation thread	G3/4

Model Selection

GEC-DO485	Electrode type	Power supply	Cable length	Note
GEC-DO485-□-□-□	104	-	-	Primary Battery Method
	108	-	-	Fluorescence Method
	-	12	-	12VDC
	-	24	-	24VDC
	-	-	05	5m (standard)
	-	-	**	Customized length
	Example: GEC-DO485-104-12-15 → Primary Battery, 12VDC, 15m cable

Core Applications

⚡

Thermal Power

DO & temperature monitoring in power plant water treatment systems.

🧪

Chemical & Fertilizer

Real-time DO monitoring of chemical solution in production process.

🚰

Water Supply & Treatment

Tap water and sewage dissolved oxygen online detection.

🍜

Food & Pharmaceutical

DO monitoring in food and biochemical pharmaceutical water systems.

FAQ

What detection methods does GEC-DO485 support?

The GEC-DO485 supports two detection methods: Primary Battery Method and fluorescence method, with different accuracy and temperature range parameters for different methods to meet diverse application scenarios.

What is the DO measurement range of GEC-DO485?

The dissolved oxygen measurement range of the sensor is 0 ~ 20 mg/L, which covers the DO monitoring needs of most industrial water quality scenarios.

What signal outputs does the sensor provide?

It provides dual signal output: 4-20mA analog signal and RS485 digital signal (compatible with MODBUS protocol), which can be flexibly connected with various back-end equipment and computers.

What is the installation specification of GEC-DO485?

The sensor adopts G3/4 installation thread, with IP68 high protection grade, suitable for various industrial on-site installation and use environments, even underwater working conditions.

Intelligent Digital Dissolved Oxygen Sensing Solution

GEC-DO485 digital dissolved oxygen sensor supports host-free direct measurement, dual detection methods and dual signal output.
Customize electrode type, power supply and cable length according to your industrial on-site DO monitoring needs.

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-DO485

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HOT KEYWORDS

GEC-DO485 Digital DO Sensor 0~20mg/L DO Range IP68 Protection ±0.5%FS (Primary) ±2%FS (Fluorescence) ±0.3℃ Temp Accuracy 4-20mA Output RS485 (Modbus) ATC Function Two-point Calibration 10Y Power-off Protection Host-free Measurement G3/4 Thread 12/24VDC Power 104 - Primary Battery 108 - Fluorescence 5m Standard Cable Custom Cable Length

GEC-DO485