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Dissolved oxygen controller

Online Conductivity Meter

1.Monitor EC&TDS
2.Multiple electrode are available
3.RS485 communication

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GWQ-EC200 Conductivity meter is one of a smart online chemical analysis equipment, widely used in thermal power, chemical fertilizer, metallurgy, environmental protection, pharmaceutical, biochemical, food and tap water and other solution EC value, TDS and temperature values Continuous monitoring . The continuous monitoring data is connected to the recorder through the transmission output to realize remote monitoring and recording. It can also be connected to the RS485 interface and can be easily connected to the computer for monitoring and recording through the MODBUS-RTU protocol.

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★  4~20mA

★  RS485 communication(MODBUS-RTU protocol)

★  Manual and auto temp compensation

★  Buzzer/switchable backlight


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It is widely used in continuous monitoring ec/tds value and temperature in solutions such as thermal power, chemical fertilizer, metallurgy, environmental protection, pharmaceutical, biochemical, food and tap water .

Our Successful Customer Case 1-Scrubber Tower;  2-Hydroponic planting/fertilizer system;   3-Hydroponics System;   4-Cleaning in place (CIP);   5-industrial wastewater;                  

pH & EC controller for hydroponic :To better understand the evolution of hydroponic crops.  So the hydroponic system needs to be monitored, Our automating measuring instruments are not only having sensors that can take readings at predefined intervals but also making sure that the reading from these sensors are stored so that they can be used for analysis and diagnosis later on. It provides reliable dosing when required to maintain a constant pH and ec level in a hydroponic system. It is on the job 24 hours a day, 7 days a week and an alarm function and relay keep the requirement value.

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Why choose us?

We have the pleasure of introducing ourselves to you as a professional factory in the export of water quality analyzer,  Our activities cover a wide range of commodities, such as ph meter, dissolved oxygen meters,  conductivity meter etc.  Our products are superior in quality and moderate in price and are sure to be saleable in your market.  We have been engaged in the water quality measurements business with many countries for many years.  And in a very good position to supply most grades of ph meter at competitive prices and for good delivery.


GWQ-EC200 EC controller is our hot selling meter.

If you have any questions, please contact us▼.      

Measuring range

0.01~20uS/cm(with K=0.01 electrode)

0.2~200uS/cm(with K=0.1 electrode)

2.0~2000uS/cm(with K=1.0 electrode)

20~20000uS/cm(with K=10.0 electrode)



Temperature range-10~+130℃
Power supplyAC220V±10%,50Hz
Relay alarm220VAC/3A
CommunicationRS485(compatible with MODBUS RTU)
Transmitting function4-20mA output
Dimensions (mm)96*96*110
Opening size(mm)92.5*92.5
cable lengthStandard 5m ( cable length ≤25m)