Seven-Parameter Water Quality Probe

The Linksens Seven-Parameter Water Quality Probe is the second-generation multi-parameter sensor platform from Linksens. It is a multi-parameter instrument for collecting water quality data. The probe can accommodate up to four sensors to obtain water quality parameter readings. Each sensor employs electrochemical, optical, or physical detection methods to measure specific parameters. Each interface can connect to any Linksens sensor, with automatic type recognition.

The multi-probe directly outputs data in Modbus format. The online seven-parameter sensor can measure the following parameters: 1) water temperature, pH, ORP, K⁺, dissolved oxygen, turbidity (suspended solids, transparency), conductivity (TDS/salinity), ammonia nitrogen, nitrate nitrogen, chlorophyll-a, and water level/depth. It can carry up to four sensors simultaneously, measuring seven parameters in total.

It can be connected to a portable meter, which automatically recognizes the attached sensor type and displays the readings.

• Diameter: 47mm; equipped with four 16mm-diameter sensors, with automatic type recognition.

• Specially designed for confined spaces such as groundwater monitoring wells.

• Suitable for long-term deployment at depths of up to 200 meters underwater.

• The main body integrates temperature and water level sensors.

• Supports active and passive low-power modes for energy efficiency.

• Fully digital sub-sensors; all calibration parameters are stored within the individual sensors, each supporting RS485 Modbus for easy maintenance and calibration.

• Features a digital automatic cleaning brush and plug-and-play functionality.

• All sensor compartments are independently designed—if one leaks or fails, it does not affect the others. Each compartment includes internal humidity detection and alarm functionality.

• Backward compatible, supporting future 16mm sensor products developed by LINKSENS.