Privacy Policy

Privacy Policy according to the GDPR

BlueSens gas sensor GmbH

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 ( The data protection officer at the company is Anke Dittrich, Haferlandweg 16, 48155 Münster (

Contact form

If you use our contact form, you are agreeing that we will process the data you enter in the form in order to answer your request. 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 12 months after the final processing of your request.

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 Anke Dittrich, at 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 after we process your request.


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

We assume no liability for compliance with data protection regulations from websites that you access through our website.


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 access
  •     Operating system being used
  •     Browser being used
  •     Host name of the accessing computer
  •     IP address used, in anonymous form
  •     Source from which you came to our website
  •     Amount of data sent in bytes
  •     Referrer URL

The processing is carried out in accordance with Article 6 (1) of the GDPR on the basis of our legitimate interest in improving the stability and functionality of our website. There is no other use of this data. The data collected cannot be assigned to specific persons. We reserve the right to check this data retrospectively, if we have a specific indication of illegal use.


For payments using PayPal, credit card via PayPal, direct debit via PayPal or – if offered – "purchase on account" or "instalment payment" via PayPal, we will forward your payment data to PayPal (Europe) Sarl et Cie, SCA, 22-24 Boulevard Royal, L-2449 Luxembourg (hereinafter referred to as "PayPal"). This transfer is made in accordance with Article 6 (1) of the GDPR, and only to the extent that this is necessary for the payment process.

PayPal reserves the right to make a credit check for the payment methods credit card via PayPal, direct debit via PayPal or – if offered – "purchase on account" or "instalment payment" via PayPal. In accordance with Article 6 (1) of the GDPR, your payment data will be passed on to credit agencies based on PayPal's legitimate interest in determining your ability to pay. The result of this credit check (e.g. the statistical probability of default), is used by PayPal for deciding whether to permit the respective payment method. The credit information can contain probability values ("score values"). Insofar as score values are included in the results of the credit rating, they are based on a scientifically recognized, mathematical statistical procedure. The calculation of score values includes, but is not limited to, address data. Please refer to Paypal's privacy policy for further data protection information (credit agencies used, etc.):

You can object to this processing of your data at any time by sending a message to PayPal. However, PayPal may continue to be entitled to process your personal data if this is necessary for the contractual payment.


Our website uses features of the LinkedIn network. The provider is LinkedIn Corporation, 2029 Stierlin Court, Mountain View, CA 94043, USA.

Each time you visit one of our pages that contains LinkedIn features, it connects to the LinkedIn servers. LinkedIn is then informed that you have visited our website with your IP address. If you click LinkedIn's "Recommend" button and are logged in to your LinkedIn account, LinkedIn will be able to associate your visit to our website with you and your user account. We point out here that we, as the provider of the website, have no knowledge of the content of the transmitted data and their use by LinkedIn.

For more information, refer to the LinkedIn privacy policy at .


Our website uses features of the XING network. The provider is the XING AG, Dammtorstrasse 29-32, 20354 Hamburg, Germany.

Each time you visit one of our pages that contains XING features, it connects to the XING servers. To the best of our knowledge, no personal data is stored. In particular, no IP addresses are stored an no usage behaviour is evaluated.

Further information on data protection and the XING "Share" button can be found in XING's privacy policy at .


We have also integrated the Twitter messaging service ( 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. So 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 . You can change your Twitter privacy settings in the account settings at .


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 on your options for this user data, please refer to the YouTube privacy policy at


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. Alternatively, you can access the information offered on this page from our website at

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 on this 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 here:

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 log in, 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:

We as provider of the information service do not collect or process further data from the usage of our service.

Google Web Fonts

This site uses web fonts, provided by Google, to uniformly display fonts. When you call up a page, your browser loads the required web fonts into your browser cache so it can display texts and fonts correctly.

For this, the browser you use must connect to Google's servers. As a result, Google learns that our website has been accessed from your IP address. The use of Google's web fonts is in the interest of a consistent and attractive presentation of our online services. This constitutes a legitimate interest pursuant to Article 6 (1) of the GDPR.

If your browser does not support web fonts, a default font will be used by your computer. For more information about Google web fonts, visit and Google's privacy policy at: .

Google Adwords

Conversion Tracking mit Google: Wir verwenden auf dieser Seite die kostenlose Conversion-Tracking-Funktion von Google AdWords. Google verwendet Cookies, um die Werbeleistung für uns zu messen. Diese Cookies verlieren nach 30 Tagen ihre Gültigkeit und dienen nicht Ihrer persönlichen Identifizierung. Mit Hilfe dieser Cookies können Google und wir erkennen, dass Nutzer auf bestimmte Google-Anzeigen geklickt haben und zu dieser Seite weitergeleitet wurden. Die so eingeholten Informationen dienen ausschließlich dazu, Conversion-Statistiken zu erstellen.

Deaktivieren des Conversion-Cookies: Wenn Sie das Cookie für das Conversion-Tracking deaktivieren möchten, können Sie Ihren Browser so einstellen, dass Cookies von der Domain „“ blockiert werden.


We use the Kyto analysis program (from Kyto GmbH, Linienstrasse 123, 10115 Berlin, Germany, as part of our legitimate interests (as defined in Art. 6 Para. 1 of the GDPR) in maintaining an attractive and user-oriented online presence. For analysis purposes, Kyto uses cookies and services from third parties such as Google Analytics. These companies may store information, such as cookies or IP requests, that your browser sends when you visit our website. The information is then transmitted to Kyto in Berlin and stored there.

Kyto uses this information to evaluate your website usage, to create reports about the usage and other services which concern website usage and the internet evaluation of the website. Kyto uses third-party services, including Google Analytics. These companies may store information, such as cookies or IP queries, that your browser sends during your visit to our website. For more information, please refer to the Google Analytics privacy policy. After your browser session has ended (e.g. after you close your browser), this information is deleted (the so-called session cookies). You can set your browser so that you are informed and can decide individually about each cookie settings, or to reject cookies in certain cases or in general. If cookies are not accepted, the functionality of our website may be restricted. If you continue to use our website, you consent to the processing of the data by Kyto and its third party providers as described above.

More information and Kyto's current privacy policy can be found at .

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 function 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:

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.