Target: TDS
Model: MW-TDS101
Detection range: 0-2000ppm
Characteristics: High precision, fast response, good stability, small size and easy installation.

MW-TDS101 Manual download
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MW-TDS101 is an online water quality detection sensor that can be used to detect the content of total dissolved solids (TDS) in water to judge the cleanliness or pollution of water.。
The unit of measurement for TDS is mg/L, which indicates how many mg of dissolved solids are dissolved in 1L of water. The higher the TDS value, the more dissolved solids the water contains.


It is widely used in laboratory scientific research, water purifier, lake water detection and other TDS detection.


High precision, fast response, good stability, small size and easy installation.


Item Parameter
insulation resistance ≥50MΩ(not exposed to water)
measurement range 0-2000ppm
measurement accuracy ±5% F.S.
Operating temperature ≤70℃
Operatingvoltage ≤5.0V
Product Specifications  quickconnect-2 minutes
Cable length 58cm

* 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.