Privacy Policy for 

THERM-LINK

Last updated: September 24, 2026

This Privacy Policy describes Our policies and procedures on the collection, use and disclosure of Your information when You use the Service and tells You about Your privacy rights and how the law protects You.

We use Your Personal data to provide and improve the Service. By using the Service, You agree to the collection and use of information in accordance with this Privacy Policy.

Interpretation and Definitions

Interpretation

The words of which the initial letter is capitalized have meanings defined under the following conditions. The following definitions shall have the same meaning regardless of whether they appear in singular or in plural.

Definitions

For the purposes of this Privacy Policy:

• Affiliate means an entity that controls, is controlled by or is under common control with a party, where "control" means ownership of 50% or more of the shares, equity interest or other securities entitled to vote for election of directors or other managing authority.

• Application refers to ThermLink, the software program provided by the Company.

• Company (referred to as either "the Company", "We", "Us" or "Our" in this Agreement) refers to Shenzhen CZF Intelligence Technology Limited., whose address is A803, Skyworth Building ,8 Gaoxinnanyi ROAD, Nanshan District, SHENZHEN, CHINA.

• Country refers to: China

• Device means any device that can access the Service such as a computer, a cellphone or a digital tablet.

• Personal Data is any information that relates to an identified or identifiable individual.

• Service refers to the Application.

• Service Provider means any natural or legal person who processes the data on behalf of the Company. It refers to third-party companies or individuals employed by the Company to facilitate the Service, to provide the Service on behalf of the Company, to perform services related to the Service or to assist the Company in analyzing how the Service is used.

• Usage Data refers to data collected automatically, either generated by the use of the Service or from the Service infrastructure itself (for example, the duration of a page visit).

• You means the individual accessing or using the Service, or the company, or other legal entity on behalf of which such individual is accessing or using the Service, as applicable.

Collecting and Using Your Personal Data

Types of Data Collected

Personal Data

While using Our Service, We may ask You to provide certain personally identifiable information, including:

• Camera Data: With Your permission, the app may access your device’s camera to enable thermal imaging and other features of the app.

• Microphone Data:  With your permission, this app may access your device's microphone to enable audio recording while video recording.

• Storage/Media Data: With your permission, this app will only access the IRTPic folder in your device's photo album to enable the app's gallery functionality.

• USB Data: With your permission, this app will only access your USB device when you are using the Plug-in thermal imager to enable the USB function of this app.

• Diagnostic and Analytical Data: When an application crashes or an error occurs, we collect anonymous diagnostic information through Firebase Crashlytics (provided by Google), including device model, operating system version, application version, error logs, and usage behavior data. This data is used to analyze the cause of the crash, improve application stability, and optimize user experience.

Usage Data

Usage Data is collected automatically when using the Service. This includes:

• App Usage: Information such as pages visited, time spent in the app, and interactions with various features.

• Analytical Data: We use Firebase Analytics to collect anonymous statistical information, including frequency of feature usage, user operation paths, and device performance indicators to optimize service features and analyze user behavior trends.

Information Collected while Using the Application

While using Our Application, in order to provide features of Our Application, We may collect, with Your prior permission:

• Data from Camera Access
  The app may request access to your device’s camera to enable specific functionality such as image snapshot and video recording. This data is used solely for the features of the app, and you can revoke access at any time via your device settings.

• Data from Microphone Access
  The app may request access to your device's microphone to enable specific features, such as video recording. This data is only used for the app's functionality, and you can revoke access at any time through your device settings.

• Data from storage/media access
  The app may request access to your device's storage or media permissions to enable specific features, such as the gallery feature within the app. This data is only used for the functionality of the app, and you can revoke access at any time through your device settings.

• Data from USB Access
  The app may request access to your USB device to enable specific features, such as the USB feature within the app. This data is only used for the functionality of the app, and you can revoke access at any time through your device settings.

These datas is used solely for the features of the app, and you can revoke access at any time via your device settings.

Use of Your Personal Data

We may use Your personal data for the following purposes:

• To provide and maintain our Service, including to monitor the usage and performance of the app.

• To enhance functionality: Including the camera and thermal imaging features.

• Crash analysis and improvement: Diagnose and fix application errors through Firebase Crashlytics to improve service stability.

• User behavior analysis: Analyze function usage through Firebase Analytics to optimize product design and operation strategies.

Data Sharing and Disclosure

We do not share personal data with third parties unless necessary for the operation of the app or as required by law. We may share data in the following situations:

Sharing data with service providers to support business operations, including:

• Firebase (Google LLC): We use Firebase Crashlytics and Firebase Analytics (provided by Google) to collect diagnostic and analytical data, which may be transmitted to Google's servers and subject to its privacy policy Firebase Data Processing Terms.

Other sharing scenarios include:

• For business purposes: If the Company is involved in a merger, acquisition or asset sale, Your Personal Data may be transferred. We will provide notice before Your Personal Data is transferred and becomes subject to a different Privacy Policy.

• For legal obligations: Under certain circumstances, the Company may be required to disclose Your Personal Data if required to do so by law or in response to valid requests by public authorities (e.g. a court or a government agency).

Data Storage and Cross-border Transfer

• Data collected through Firebase may be stored on Google's servers (except in mainland China). We will ensure that such transfer complies with applicable data protection regulations.

• For the Shenzhen storage and cross-border transfer of device warranty registration data, see “Device warranty registration” in this policy.

Device warranty registration

To establish device warranty records, verify warranty status and prevent duplicate or forged registrations, we send the actual serial number (SN or DID) of the connected external device, its model and app version, and necessary verification information such as the app distribution identifier, request time, random verification value and signature to the warranty service operated by the Company identified in this policy. The serial number identifies the connected external device, such as a thermal imager, not the phone itself. This device identifier is not anonymous data. The server records the first successful registration time and related warranty information. The registration request does not include captured photos, videos or audio.

Registration is automatically enabled as part of the device service and cannot be separately turned off. After a successful connection and reading the actual serial number, a request is sent if no successful registration marker is stored locally. When connected to a device hotspot without Internet access, the app may use cellular data and incur a small data charge. A failed upload does not affect connection, preview, photos or recording. The app does not automatically retry during that attempt; it may try again during a later use. After a new or duplicate registration has been verified successfully, the app stores a success marker for that serial number locally to avoid repeated requests, normally until the app is uninstalled or its data is cleared. After reinstallation, the app may submit the serial number again; a duplicate registration does not reset the first registration time. Diagnostic data settings do not control warranty registration.

The Company identified in this policy is responsible for warranty registration data, which is stored in Shenzhen, Guangdong, People’s Republic of China. Data from users outside China is transferred to China. Registration requests use HTTPS encryption and signature verification. This storage location applies only to warranty registration data; other services are described separately in this policy.

Server warranty records are retained until 3 years after the applicable warranty expires. Unresolved after-sales disputes or applicable legal requirements may require further retention, limited to the necessary scope and period. Records are deleted or anonymised when the retention period ends and no further retention is necessary. Uninstalling the app or clearing local data does not automatically delete server records.

The app does not provide a self-service button for deleting warranty records. You may request access, correction or deletion of information relating to you through the relevant Company’s website or email listed under “Contact Us” in this policy. After necessary verification, we will handle the request under applicable law and actual retention needs, and explain the outcome and any reason and period for continued retention. A deletion request does not reset or extend the warranty.

Other legal requirements

The Company may disclose Your Personal Data in the good faith belief that such action is necessary to:

• Comply with a legal obligation

• Protect and defend the rights or property of the Company

• Prevent or investigate possible wrongdoing in connection with the Service

• Protect the personal safety of Users of the Service or the public

• Protect against legal liability

Retention of Your Personal Data

The Company will retain Your Personal Data only for as long as is necessary for the purposes set out in this Privacy Policy. We will retain and use Your Personal Data to the extent necessary to comply with our legal obligations (for example, if we are required to retain your data to comply with applicable laws), resolve disputes, and enforce our legal agreements and policies.

The Company will also retain Usage Data for internal analysis purposes. Usage Data is generally retained for a shorter period of time, except when this data is used to strengthen the security or to improve the functionality of Our Service, or We are legally obligated to retain this data for longer time periods.

Security of Your Personal Data

The security of Your Personal Data is important to Us, but remember that no method of transmission over the Internet, or method of electronic storage is 100% secure. While We strive to use commercially acceptable means to protect Your Personal Data, We cannot guarantee its absolute security.

You can manage data collection in the following ways:

• Uncheck the checkbox in the Privacy Policy in the app. Please note that the collected diagnostic data will not be automatically deleted. If you require us to no longer use and delete the reported data, please contact us via the email at the bottom.

Children's Privacy

Our Service does not address anyone under the age of 13. We do not knowingly collect personally identifiable information from anyone under the age of 13. If You are a parent or guardian and You are aware that Your child has provided Us with Personal Data, please contact Us. If We become aware that We have collected Personal Data from anyone under the age of 13 without verification of parental consent, We take steps to remove that information from Our servers.

If We need to rely on consent as a legal basis for processing Your information and Your country requires consent from a parent, We may require Your parent's consent before We collect and use that information.

Changes to this Privacy Policy

We may update Our Privacy Policy from time to time. We will notify You of any changes by posting the new Privacy Policy on this page.

We will let You know via email and/or a prominent notice on Our Service, prior to the change becoming effective and update the "Last updated" date at the top of this Privacy Policy.

You are advised to review this Privacy Policy periodically for any changes. Changes to this Privacy Policy are effective when they are posted on this page.

Contact Us

If you have any questions about this Privacy Policy, You can contact us:

• By Email: chuangzhifei@gmail.com