Target: TDS
Model: ZW-TDS102
Detection range: 0-2000μs/cm
Detection principle: Digital signal output
Characteristics: Low power, high precision, linear output, convenient calibration and good stability
Size: 58X38mm

ZW-TDS102 Manual download
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ZW-TDS102 TDS water quality detection module is a universal module that uses digital signal output, which can be used to detect the content of total dissolved solids (TDS) in water, and have good selectivity and stability.


It is widely used in the detection of laboratory research, water purifier, lake water and other fields.


Low power, high precision, linear output, convenient calibration and good stability.


Working Voltage 12V(DC) Working current <5mA
Consumption <25mW Measuring range 0-2000μs/cm
Detecting temperature range 0-100℃ Resolution 0.1μs/cm
Output RS485(5V level) Size 58X38mm
Response time ≤20S Output linearity linearity
Temperature range 0~100℃ Lifespan 3years

* The description and specifications might be changed without notice. Please contact us for the latest information before placing orders.

Technical Support:

Customized technical design and function, LOGO and package are available without extra charge (including molding fee) for mass volume.

The sensors don't have sleeping mode. It can be set in program if needed.

All Winsen products go through strict inspections and tests to make sure they are 100% qualified before shipping out.

The sensor has been fully tested (not calibrated) before leaving the factory. However, after transportation and storage, the environment conditions change, and the surface of the sensor absorbs moisture, mixed gas, pollution matters, etc. It is recommended that customers perform aging and calibration after sensors become stable according to the program and use occasions of the whole device.

15﹪-90﹪RH without condensation,greater or less than this range or long-term high temperature and high humidity will affect the life of the sensor.

Our sensors are certified with CE, 3C, ROHS, anti-explosion, fire prevention, and coal mining safety according to different applications. And we provide assistance for new certification.

Many factors can cause the sensor to fail such as broken wires in transportation, poisoning, falling off of the sensitive material, damage to the heating wire (device), etc. Please find specific cause in each category with Winsen’s aftersales.

Winsen provides professional consultation and service before and after sales. We will recommend the best fitting sensor for your demand. If you have any problem, don’t hesitate to email us to

Due to high volume of daily incoming emails and time zone difference, we may not be able to reply your emails immediately. But we will reply to your inquiry in 24 business hours.