Chloride Sensor for Water Quality, 1.8~35,500 ppm

5 out of 5 based on 1 reviews | Write a review

$584.56

Selling competitively priced chloride sensor for water quality. The chloride water quality sensor measures from 1.8 to 35,500 ppm with a resolution of 0.01 ppm and an accuracy of ±3% FS. It has automatic temperature compensation and supports online monitoring. Application for river water, domestic plant root exudates, soil extract, blood, blood electrolyte, bedside analysis, biological fluids, sludge, electroplating.

SKU: ATO-WQS-ICL

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Overview
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Chloride sensor for water quality measures chloride from 1.8 to 35,500 ppm with high precision (0.01 ppm) and ±3% accuracy. It has automatic temperature compensation and supports online monitoring. Ideal for river water, plant roots, soil, blood, biological fluids, sludge, and electroplating.

Specification

Ion Concentration
Measurement Range	1.8~35500 ppm
Resolution	0.01 ppm
Measurement Accuracy	±3% FS
Temperature
Measurement Range	-10.0 to 110.0 ℃
Resolution	0.1 ℃
Measurement Accuracy	±0.5 ℃
Temperature Type	Thermistor NTC10K
Temperature Compensation	Automatic
Data Transmission
Interface	RS-485
Protocol	MODBUS-RTU communication protocol
Other Parameters
Working Voltage	9~27 VDC
Dielectric Strength	2500 Vrms
Power Consumption	Approx. 0.5 W
Material	PPS Solid
Installation Method	3/4 inch front and rear thread
Slope	56±3 mV
Repeatability	±2%
Interference Resistance	S²⁻, I⁻, CN⁻, Br⁻
Pressure Range	0~2 atm
Response Time	≤30 seconds to reach 95% response
Storage	Long-term: dry storage; Short-term: store in chloride standard solution
pH Operating Range	2~12 pH
Output Impedance	20~50 MΩ
Working Temperature	0~80 ℃
Maintenance & Cleaning	Polish with fine sandpaper; clean with chloride standard solution
Online Monitoring	Supported
Calibration Point	50000 ppm Cl⁻
Reference Electrode	Double junction, single liquid junction structure
Connection	Terminal
Applications	River water, domestic plant root exudates, soil extract, blood, blood electrolyte, bedside analysis, biological fluids, sludge, electroplating, food

Feature

Ionised water quality sensor features

High-Precision Ion-Selective Electrode: This chloride sensor uses an advanced ISE that requires no reagents, is eco-friendly, and delivers more stable and accurate data for long-term monitoring.
Standard G3/4 Threaded Connection (Top and Bottom): The water quality sensor features an easy-to-install threaded design that helps reduce installation time and cost.
RS485 Signal Output Supported: Supports MODBUS-RTU protocol for seamless integration into data systems, ideal for smart water quality monitoring networks.
Low Voltage Power Supply: Designed for energy efficiency, the chloride sensor consumes less than 0.5W, making it suitable for continuous use in remote or solar-powered setups.
Premium Low-Noise Shielded Cable: Equipped with a high-quality 5-meter standard cable to reduce signal interference; cable length can be customized as needed.

Dimension (Unit: mm)

Ionised water quality sensor size

Wiring Instructions

Function	Color	Description
Data Transmission	Yellow Wire	RS-485 Communication T/R+ (A)
Data Transmission	White Wire	RS-485 Communication T/R− (B)
Power Supply	Red Wire	DC Power Positive
Power Supply	Black Wire	DC Power Ground

Application

Ionised water quality sensor application

Tips: Can the chloride sensor be used in high-salinity or seawater environments?

Yes, this chloride ion-selective electrode is specifically designed to handle a wide range of chloride concentrations, from as low as 1.8 ppm to as high as 35,500 ppm. This makes it especially suitable for high-salinity conditions such as seawater, brackish water, and industrial brine systems. The materials used—PPS—offer excellent resistance to corrosion caused by high chloride content, and the sensor's membrane is engineered to remain stable even in extreme ion activity. This ensures long-term, accurate monitoring without frequent recalibration or membrane degradation.

Chloride Sensor for Water Quality User Manual.PDF

Existing reviews of Chloride Sensor for Water Quality, 1.8~35,500 ppm

Chloride Ion Sensor Inquiry

I would like to inquire about the chloride ion sensor (SKU: ATO-WQS-ICL). I need a chloride ion sensor that can operate independently (automatically) in the field for several months without manual intervention. Does this sensor meet my requirements? How often should it be calibrated? Also, can the sensor be set to automatically measure at preset time intervals?

From: Zalak | Date: 15/01/2026

Was this review helpful? Yes No (0/0)

ATO Responded

1. This sensor meets the requirements and can operate independently (automatically) in the field for several months without manual intervention.
2. It is recommended to calibrate it every 1-3 months.
3. This sensor supports automatic measurement and can be configured for fixed time interval measurements via a communication protocol. For detailed information, please refer to the product user manual. See on: https://www.ato.com/Content/doc/chloride-sensor-user-manual.pdf

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