Privacy Policy

Last Updated: March 3, 2026
Effective Date: March 10, 2026

Zhengzhou Winsen Electronics Technology Co., Ltd. (hereinafter referred to as "we") respects your right to privacy and the relevant rights of personal information subjects. This Privacy Policy explains how our website (winsen-sensor.com) collects, shares and uses your personal information.

If you have any questions or concerns about our use of your personal information, please contact us using the contact information provided at the end of this Privacy Policy.

Types, Purposes and Methods of Collecting and Processing Personal Information

The personal information we may collect about you is broadly divided into the following categories:

1. Online Message

If you wish to contact us, you may voluntarily fill in your name, company name, phone number, email address, other relevant social medias and your requirements. If you do not agree to our processing of the above personal information, we will not be able to provide this function for you, but it will not affect your use of other basic functions of this website, such as browsing website information.

2. Online Customer Service

If you wish to contact our customer service, you may leave your phone number, name and other personal information you voluntarily provide in the customer service chat window. If our customer service staff is not online, we will contact you based on the contact information you left. You may also voluntarily upload pictures and files in the chat window.Please note that for the purpose of realizing this function, the information you provide does not need to contain any personal information of you or a third party, and we also suggest and hereby remind you not to provide personal information of you or a third party in the aforementioned information.

Please note that you are responsible for the source and content of the data contained in the information you provide. We remind you to carefully judge the legality of the data source and content, and ensure that you have the right to provide the aforementioned data to us for processing, without any violation of laws and regulations, infringement of rights or breach of contractual agreements with third parties. All consequences and liabilities arising from the violation of laws, administrative regulations, departmental rules or national policies by the data content you provide and your data processing acts shall be borne by you alone.

3. Information We Automatically Collect

When you access our website, we may automatically collect certain information from your device to ensure the normal operation of the website and for security and anti-fraud purposes. The information we automatically collect may include your IP address. Some of this information may be collected using cookies and similar tracking technologies.

Legal Basis for Processing Personal Information

We may also use your personal information on the following legal bases:

  • (1) Obtaining your consent;
  • (2) Necessary for the conclusion and performance of a contract to which you are a party, or for the implementation of human resources management in accordance with legally formulated labor rules and regulations and legally signed collective contracts;
  • (3) Necessary for the performance of statutory duties or obligations;
  • (4) Necessary for responding to sudden public health incidents, or for protecting your life, health and property safety in emergency situations;
  • (5) For conducting news reporting, public opinion supervision and other acts for the public interest, processing personal information within a reasonable scope;
  • (6) Processing your voluntarily disclosed or other legally disclosed personal information within a reasonable scope in accordance with the provisions of the Personal Information Protection Law of the People's Republic of China;
  • (7) Other circumstances stipulated by laws and administrative regulations.

Separate Consent

Separate consent means that you have been fully informed and we do not disclose it together with other personal information processing rules. We will obtain your separate consent in the following cases:

  • (1) Providing your personal information to other personal information processors;
  • (2) Publicly disclosing your personal information;
  • (3) Using your personal image or identity identification information for purposes other than maintaining public security;
  • (4) Processing your sensitive personal information (Sensitive personal information refers to personal information that is likely to lead to the infringement of the personal dignity of a natural person or the endangerment of personal and property safety if leaked or illegally used, including biometric identification, religious belief, specific identity, medical and health, financial account, travel trajectory and other information, as well as personal information of minors under the age of 14);
  • (5) Providing your personal information overseas.

How We Share Personal Information with Third Parties

We will only share or provide personal information with third parties under the following circumstances:

  • (1) We inform you of the recipient's name and contact information, processing purpose, processing method and the type of personal information involved;
  • (2) We obtain your separate consent;
  • (3) We conduct a personal information protection impact assessment before sharing or providing.

How Do We Protect the Security of Personal Information?

We use appropriate technical and organizational measures to protect the personal information about you that we collect and process. The measures we use are designed to provide a level of security appropriate to the risks of processing your personal information.

International Data Transfer

We will store the personal information of users collected in China within the territory of the People's Republic of China in accordance with the provisions of laws and regulations.

Retention of Personal Information

We will retain the personal information collected from you if we have a continuing legitimate business need to do so. Unless otherwise stipulated by laws and regulations, if we no longer have a continuing legitimate business need to process your personal information, we will delete such personal information or anonymize it.

Updates to This Privacy Policy

We may update this Privacy Policy from time to time in response to evolving laws, technologies or business developments. When we update this Privacy Policy, we will take appropriate measures to notify you based on the materiality of the changes made. You may check the last updated time of this Privacy Policy by referring to the "Last Updated" date displayed at the top of this Privacy Policy.

How to Contact Us

If you wish to exercise your rights as a personal information subject stipulated by laws and regulations, such as the right to access, copy, correct, supplement, delete, withdraw consent and transfer your personal information (subject to relevant legal requirements, your close relatives may exercise the aforementioned rights on your behalf unless you make other arrangements), or if you have any questions or concerns about our use of your personal information, please contact us using the following details. We will respond to your request within 15 working days:

Zhengzhou Winsen Electronics Technology Co., Ltd.
Tel: 0371-67169097

Leading gas sensing Solution supplier

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ANY QUESTIONS?

Frequent Asked Questions

Professional manufacturer of gas sensors, global sensing solutions provider with over 30 years of experience. Top quality guarantee, Excellent service, Customized products, Fast delivery!

Reference lead times: 1-15 days after receiving deposit depending on volume. The actual lead time can be confirmed with Winsen Order Processing Dept.

Winsen will recommend the most appropriate way of transportation (express, air, sea, train, etc.) according to customer's requirement on cost and time.

T/T, Paypal, West Union, Credit Card, etc.

MOQ is different depending on product models. Please contact Winsen sales for details.

Customer LOGO and packing design are acceptable.
Customized design and function will be provided without extra charge (including molding fee).

Sample order is acceptable and the fees will be borne by buyer.

Winsen has a complete and strict flow for offline sensors: aging-reject defective-sampling inspection-issue reports-finished ingoing...outgoing.

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

ppm: parts per million
ppb: parts per billion
VOL: volume ratio
LEL: lower explosive limit
NDIR: Non-Dispersive Infra-Red

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