Conductivity Water Sensor, 4 Electrode

Name: Conductivity Water Sensor, 4 Electrode
Brand: Such.com
SKU: SUCH-EC-4E
Price: 618.98 USD
Availability: InStock
Rating: 5.0 (1 reviews)

1 review(s) | Add your review

SKU: SUCH-EC-4E

$618.98

● Conductivity 0.1~500ms/cm ● TDS 0~60000ppm ● Salinity 0~500ppt ● Resolution 1μs/cm ● Power supply 6~30V DC

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🕒 Delivery date: 6-12 days

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Overview
Specs
Application
FAQ
Reviews

Overview

SUCH conductivity water sensor measures conductivity from 0.1~500mS/cm, TDS up to 60000ppm, and salinity up to 500ppt with 1μS/cm resolution. It uses separated excitation and sampling electrodes to avoid polarization deviation and reduce AC errors, while its flat structure improves fouling resistance and cleaning convenience. Built with corrosion resistance and wide measurement capability, conductivity sensor delivers accurate and stable performance for long-term water quality monitoring.

Feature

Corrosion Resistance: Withstands chemical environments and ensures long service life.
Wide Range: Electrical conductivity sensor suitable for a broad conductivity measurement range.
High Accuracy: Reduces measurement errors and provides stable readings.
High Performance: Maintains reliable operation under various conditions.
Separated Electrodes: Excitation and sampling electrodes are independent, avoiding polarization deviation.
Reduced AC Deviation: Minimizes errors caused by equivalent capacitance.
Flat Structure Design: High resistance to fouling and easy to clean.

Dimension (Unit:mm)

Conductivity water sensor size

Note: Default front G3/4 thread, optional front and rear G3/4 threads (contact us).

Wiring

Conductivity water sensor wiring

Specs

Measurement Parameters	Water temperature/salinity/conductivity/TDS
Electrode Material	Graphite
Measurement Range	Conductivity: 0.1~500ms/cm TDS: 0~60000ppm Salinity: 0~500ppt
Resolution	1μs/cm, 1ppm, 0.01ppt
Temperature Range	20~60℃/0.1℃
Electrode Constant	0.24±0.02
Wire Length	5m
Temperature Compensation	10K
Measurement Accuracy	Conductivity: 1.5%F.S Temperature: ±0.5℃
Data Compensation	Default 25.0℃ compensation temperature, 2%/℃ (adjustable)
Communication Protocol	Standard MODBUS-RTU protocol
Communication Interface	RS485 interface
Communication Mode	Baud rate 966, 8, 1, N ID: 1-255, Default ID: 1 (0x01)
Setting Method	RS485 remote setting
Power Supply	6~30V DC (12 VDC recommended)
Power Consumption	30mA @12 VDC

Application

Chemical Fertilizers

Metallurgy

Environment Protection

FAQ

Q1: What is an inductive conductivity sensor? ❯

An inductive conductivity sensor, also called a toroidal or electrodeless conductivity sensor, measures the conductivity of a liquid without direct metal-to-liquid contact. It uses two coils encapsulated in a non-conductive body. One coil generates an alternating magnetic field that induces a current in the liquid, while the other coil detects the resulting signal.

Q2: What are the advantages of inductive conductivity sensors compared to electrode sensors? ❯

Inductive sensors have no exposed electrodes, so they are resistant to fouling, scaling, and corrosion. They require minimal maintenance, have longer service life, and perform well in harsh environments such as high concentrations of acids, bases, or salts. They are also not affected by electrode polarization, which improves measurement stability.

Q3: What liquids are suitable for inductive conductivity sensors? ❯

They are ideal for high-conductivity liquids such as concentrated acids (HCl, H₂SO₄), caustic soda, brine, seawater, and chemical wastewater. They are less suitable for very low-conductivity liquids (like ultrapure water) because the induced current is too weak to measure accurately.

1 review(s)

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From: Marcus Ellington | Date: 9/8/2026 9:19 AM

good conductivity water sensor

Picked this conductivity water sensor up for a water treatment setup. I mostly wanted something I could leave in the line instead of checking everything by hand. The readings look pretty close to my meter, and the TDS number is useful to have too. So far, I’ve just left it running and checked it now and then.

Conductivity Water Sensor, 4 Electrode

Feature

Dimension (Unit:mm)

Wiring

Chemical Fertilizers

Metallurgy

Environment Protection

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