Target: Liquid
Model: MW-ORP101
Detection range: -2000 mV ~﹢2000 mV
Detection principle: A primary battery type ORP water quality detection sensor.
Characteristics: High precision, fast response, good stability, small size, low power consumption, easy to carry
Resolution and accuracy: Resolution 1 mV
Response time: ≤120 s
Notes: Material ABS

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MW-ORP101 sensor is a primary battery type ORP water quality detection sensor. Using the relationship between the ORP value of the test solution and the measured potential difference, the ORP value of the solution to be tested is determined by the potential difference measured by the working battery composed of the electrode and the counter electrode in the solution to be measured through the sensor.


It is widely used for ORP value detection in laboratory research, water supply, waste water treatment, aquaculture, farmland irrigation and other fields


High precision, fast response, good stability, small size, low power consumption, easy to carry


Items Parameter
Detection Object Solution
Measure Range -2000 mV ~﹢2000 mV
Resolution 1 mV
Response Time ≤120 s
Material ABS
Working Temperature 0℃~50℃
Service Life 1 year

* 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.