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Privacy Policy

Privacy Policy according to the GDPR

Responsible party according to the GDPR

Dr. Holger Müller and Dr. Udo Schmale are responsible for the company's data processing and the website of BlueSens gas sensors GmbH, Snirgelskamp 25, 45699, Germany (e-mail: info(at)bluesens.de). The data protection officer at the company is Lawyer Ulf Lappe, Schorlemerstraße 11, 48143 Münster, Telefon +49 251 38483040, lappe(at)bergmann-lappe.de.

Contact form

If you use one of our contact forms, you agree that we may process the data you enter into the forms in order to answer your inquiry. The data will be stored and used only for answering your request and the technical administration related to this. If there are no statutory data retention requirements, we will delete your data 24 months after the final processing of your request. We delete application documents 6 months after receipt at the latest.

Your rights according to the GDPR

You have a right to be informed. You are entitled to be informed from us concerning what personal information we have stored about you, what the purpose of the processing is, what categories of personal data we collect from you, to which recipients or categories of recipients we have shared your information, and how long we store your data. You have the right to complete, correct, delete, transfer, and restrict the processing of your data. You also have the right to object to the processing of the data that we have concerning you, if the appropriate conditions of Articles 15 to 20 GDPR apply. In this case, please contact our data protection officer, lawyer Ulf Lappe, at lappe(at)bergmann-lappe.de. If you assert your right to rectification, erasure or restriction of processing, we are obliged to notify all recipients to whom we have disclosed your data about such rectification, erasure or restriction of processing, unless this proves to be impossible or involves a disproportionate amount of effort. Upon request, you have the right to be informed about these recipients. Pursuant to Article 7 (3) of the GDPR, you have the right to withdraw your consent to the processing of your personal data at any time, with immediate effect. The lawfulness of the processing until your revocation of the consent is not affected by such revocation.
If you believe that we have violated the GDPR while processing your data, you have a right to complain to a supervisory authority at the place of the suspected infringement, at your workplace and in the Member State of your residence.

The duration of the storage of your personal data

The duration of the storage of your personal data shall correspond to the various legal retention periods. After the legal retention periods have expired, we will delete your data, unless we have agreed on a different period of time for reasons of expediency. If there is no statutory retention period, we will delete your data 24 months after we process your request. We delete application documents 6 months after receipt at the latest.


Our offering and services are for adults. Persons under the age of 18 should not submit any personal data to us without the consent of their parents or guardians.

Disclaimer and exclusion of liability

In the case of direct or indirect references to external internet pages ("links") which are outside our area of responsibility, our company has no obligation of liability for compliance with data protection regulations. We have no information about any illegal content on the above-mentioned pages. We have no influence on their current or future design and content. We do not check the contents of pages that have been altered after the link was established. This applies to all references and links to third parties within the website, and to external entries in guest books, discussion forums or mailing lists. Only the provider of the website hosting such references shall be liable for incorrect, illegal or incomplete contents and especially for damages resulting from the use of such information


This website uses cookies. Cookies are small text files which are used to make our site more effective, user-friendly and secure. These files are saved by your browser. Most of the cookies we use are deleted immediately after your visit to our website. Other cookies allow us to recognize your browser on your next visit; these remain stored on your computer until you delete them. You can set your browser so that you are informed about the configuration of cookies. You can also prevent the storage of cookies by setting this configuration in your browser. If cookies are prevented, the function of this website may be limited. When individual cookies are used to collect personal data, the data is processed pursuant to Article 6 (1) of the GDPR to carry out a contract or to safeguard our legitimate interest within the customer-friendly function of the website.

Server log files

Your browser automatically transmits the following data to our server

  • The date and time of request
  • Operating system being used
  • Browser being used
  • Language and version of the browser software
  • Host name of the accessing computer
  • IP address used, in anonymous form
  • Source from which you came to our website
  • Time zone difference compared to Greenwich Mean Time (GMT)
  • Content of the request (concrete page)
  • Amount of data transmitted for each case
  • Access status/HTTP status code
  • Referrer URL

Legal basis

We process your data on the legal basis of Art. 6 (1) a) of the GDPR:
Your consent to the processing of the data, Art. 6 (1) b) of the GDPR:
To fulfil the underlying contract between you and our company, and Art. 6 (1) f) of the GDPR: Processing to protect our legitimate interests for building a business relationship.

Existence of automated decision making

We do not use automatic decision making or profiling.

Information in the event of change of purpose

We will inform you immediately if the reason for processing your personal data changes.


Our website uses features of the LinkedIn network. The provider is LinkedIn Ireland Unlimited Company, Wilton Place, Dublin 2, Ireland.

Every time you access one of our pages that contains LinkedIn functions, a connection to LinkedIn's servers is established. LinkedIn is informed that you have visited our Internet pages. LinkedIn may collect your IP address and other information that is stored on your computer in the form of cookies. This information is used to provide us, as the operator of the LinkedIn sites, with statistical information about the use of the LinkedIn site. According to LinkedIn, your IP address is anonymized (for "German" IP addresses) and deleted after 90 days. The data collected about you will be processed by LinkedIn Inc. and may be transferred to countries outside the European Union. LinkedIn's information collection and use practices are described in general terms in LinkedIn's Privacy Policy. You will also find information about how to contact LinkedIn and how to place advertisements. The data use policy is available at the following link: www.linkedin.com/legal/privacy-policy.

When you click on LinkedIn's "Recommend Button" and are logged into your LinkedIn account, LinkedIn is able to associate your visit to our site with you and your account. To avoid this, you should log out of LinkedIn or disable the "stay logged in" feature, delete the cookies on your device, and exit and restart your browser. We would like to point out that we, as the provider of the pages, have no knowledge of the content of the transmitted data or its use by LinkedIn. LinkedIn does not conclusively and clearly state how LinkedIn uses data from visits to LinkedIn sites for its own purposes, to what extent activities on the LinkedIn site are assigned to individual users, and whether data from a visit to the LinkedIn site is passed on to third parties.

Please note that you use this LinkedIn site and its functions at your own responsibility. This applies in particular to the use of the interactive functions (e.g. commenting, sharing, rating).

As provider of the information service, we do not collect or process any other data from your use of our service.


We have also integrated with the Twitter messaging service (twitter.com) on our website. This messaging service is provided by Twitter, Inc., 1355 Market St, Suite 900, San Francisco, CA 94103, USA. Twitter offers its so-called "Tweet" function. Thus, you can publish 140-character messages with website links with your own Twitter account. If you use the Twitter's "Tweet" function on our web pages, the respective page will be linked to your account on Twitter where it may be made public. Data is then also transmitted to Twitter. We are not aware of the content of the transmitted data and any usage by Twitter. For more information, please consult Twitter's privacy policy at: twitter.com/privacy. You can change your Twitter privacy settings under Account Settings at twitter.com/account/settings.


This website uses YouTube to view and play videos. YouTube is owned by Google. The website operator is YouTube, LLC, 901 Cherry Ave., San Bruno, CA 94066, USA. When you visit one of our pages that has a YouTube plug-in, you will be connected to a YouTube server. The YouTube server will be informed about which of our pages you visited.

YouTube allows you to associate your browsing behaviour directly with your personal profile when you are logged in to your YouTube account. You can prevent this by logging out of your YouTube account.

For more information about your options for this user data, please refer to the YouTube privacy policy at www.google.de/intl/de/policies/privacy


For the information services offered here, BlueSens gas sensor GmbH uses the technical platform and services of Facebook Ireland Ltd., 4 Grand Canal Square Grand Canal Harbour, Dublin 2, Ireland.

Please be aware that you use this Facebook page and its functions under your own responsibility. In particular, this applies to the use of interactive functions such as commenting, sharing and rating. You may also access the information offered on this page from our website at www.bluesens.com.

When you visit our Facebook page, Facebook collects information (such as your IP address and other information) that is stored on your PC in the form of cookies. This information is used to provide us, as the operator of these Facebook pages, with statistical information about the use of the Facebook page. More information is provided by Facebook at the following link:

The data collected about you in this context is processed by Facebook Ltd. and may be transferred to countries outside the European Union. Facebook describes, in general terms, what information it receives and how it is used in its data usage guidelines. Information on how to contact Facebook and how to configure advertisements can also be found there. The data usage guidelines are available at the following link:

Facebook's complete data guidelines can be found at https://de-de.facebook.com/full_data_use_policy.

Facebook has not clearly specified in what way they use the data from visits to Facebook pages for their own purposes, to what extent activities on the Facebook page are assigned to individual users, how long Facebook stores this data, and whether data from a visit to the Facebook page is passed on to third parties; thus, such details are not known to us.

When you access a Facebook page, the IP address assigned to your end device is transmitted to Facebook. According to Facebook, this IP address is anonymised (for IP addresses coming from Germany) and deleted after 90 days. Facebook also stores information about its users' end devices (e.g. as part of the "registration notification" function). Thus, Facebook may be able to assign IP addresses to individual users.

If you are currently logged on to Facebook as a user, there is a cookie containing your Facebook identification on your end device. This enables Facebook to know that you have visited this page and how you have used it. This also applies to all other Facebook pages. Facebook buttons embedded in web pages allow Facebook to track your visits to these web pages and associate this information with your Facebook profile. This data can be used to tailor content or advertising to your preferences.

If you want to avoid this, you should log out of Facebook, deactivate the function "stay logged in", delete the cookies on your device and close and restart your browser. Facebook information that immediately identifies you is deleted in this way. This allows you to use our Facebook page without revealing your Facebook identity. When you access the interactive features of the page (like, comment, share, news, etc.), a Facebook login screen will appear. If you login, you will once again be recognizable for Facebook as a specific user.

For information on how to manage or delete existing information concerning you, visit the following Facebook Support pages:

As the provider of the information service, we do not collect and process any other data from your use of our service.

Google Ads

Conversion tracking with Google: We use the free conversion tracking feature of Google Ads on this website. Google uses cookies to measure our advertising performance. These cookies lose their validity after 30 days and are not used to personally identify you. By using these cookies, Google and we recognize when users have clicked on certain Google ads and were redirected to our website. The information obtained in this way is used only to generate conversion statistics.

To disable conversion cookies: If you want to disable the conversion tracking cookie, you can set your browser to block cookies from the domain googleadservices.com.

Google Analytics

This website uses functions from the Google Analytics web analytics service. The provider is Google Inc. 1600 Amphitheater Parkway Mountain View, CA 94043, USA. Google Analytics uses cookies. These are text files that are stored on your computer. They enable an analysis of your usage of the website. The information generated by the cookie concerning your usage of this website is usually transmitted to a Google server in the USA and stored there.

Due to the IP anonymization on this website, however, your IP address is truncated by Google within member states of the European Union or in other contracting states of the Agreement on the European Economic Area. Only in exceptional cases will the full IP address be sent to a Google server in the US and shortened there. On behalf of the operator of this website, Google will use this information to evaluate your use of the website, to compile reports on website activity and to provide other services related to website activity and internet usage to the website operator. The IP address provided by Google Analytics within the framework of Google Analytics will not be merged by Google with other data provided.

You can configure your web browser to prevent the storage of cookies; however, please note that if you do this, you may not be able to use all the features of this website completely. You may also prevent Google from collecting the data generated by the cookie related to your usage of this website (including your IP address) as well as the processing of this data by Google by downloading and installing the browser plug-in available under the following link: tools.google.com/dlpage/gaoptout

As an alternative to the browser add-on or within browsers on mobile devices, please click this link to prevent Google Analytics from recording information within this website in the future (this opt-out function works only for that browser and domain). This will store an opt-out cookie on your device. If you delete the cookies in your browser, you will need to click on this link again. For the opt-out to work on the page, you must use the section marked in yellow exactly as HTML code.