Privacy policy
Effective Date: June 18, 2026
Welcome to isentrol.com (the "Website"). This website is operated by Shandong iSentrol Electronic Technology Co., Ltd. (“we”, “us”, or “our”), a manufacturer of flow sensors, flow meters, flow switches, safety valves and solar controllers located in Jinan, Shandong Province, China.
We are fully committed to protecting your personal privacy and processing your personal information in a lawful, transparent, and secure manner. This Privacy Policy explains what personal data we collect from visitors, customers and business partners, how we use, store and share such data, what security measures we implement, and your legal rights over your personal information. By browsing our website, submitting inquiry forms or contacting our sales team, you agree to the terms set out in this policy.
1. Information We Collect
We only collect data necessary for business communication, technical support and website operation, categorized as follows:
1.1 Personal Information You Voluntarily Submit
When you fill in contact forms, request product quotations, subscribe to our industry newsletter or contact after-sales support, you may provide:
- Full name, job title, company name, business address
- Email address, landline or mobile phone number
- Inquiry content, customized product demand, technical consultation records
1.2 Automatic Technical Usage Data
We automatically collect anonymous browsing data when you access our website, including:
- IP address, device model, operating system, browser version
- Access timestamp, visited pages, stay duration, click behavior, referral source
- Country/region access location for global business statistics
1.3 Cookies & Tracking Technologies
We use cookies, web beacons and local storage tools to optimize website experience, split into 4 categories with clear consent control:
- Strictly Necessary Cookies: Mandatory for session maintenance, login and form submission, cannot be disabled;
- Functional Cookies: Save your language, region and browsing preferences, activated only with your consent;
- Analytics Cookies (Google Analytics): Collect anonymous traffic data to optimize our industrial product pages, no individual identity tracking;
- Marketing Cookies: Deliver targeted product promotion content, you may opt out at any time.
You can adjust cookie permissions via the cookie pop-up banner on our homepage, or disable cookies through your browser’s privacy settings.
2. Legal Basis & Purposes of Data Processing
We process your personal data based on the following legal grounds in compliance with GDPR and China’s Personal Information Protection Law:
2.1 Performance of Contract
Reply to your product inquiries, provide quotation, technical drawings, after-sales maintenance and global shipping consultation services.
2.2 Explicit Consent
Send our industrial sensor product catalog, industry news and marketing newsletters (you can unsubscribe anytime).
2.3 Legitimate Business Interest
- Diagnose website technical faults, prevent hacking and unauthorized access;
- Analyze global customer demand to upgrade our flow sensor, safety valve and solar controller product lines;
- Maintain business records for export trade and customer follow-up.
2.4 Legal Obligation
Comply with Chinese export customs laws, tax regulations, court orders and official regulatory requirements.
3. How We Share & Disclose Your Information
We never sell, rent or trade your personal data for commercial profit. We only share limited necessary information under the following limited circumstances:
- Trusted Service Providers: Cloud hosting, email delivery, website analytics and logistics partners who sign strict non-disclosure agreements and only process data per our instructions;
- Legal Compliance: Disclose data when required by government authorities, court judgments or export control laws;
- Business Merger: In case of company restructuring, acquisition or asset transfer, we will notify you before data transfer.
Cross-Border Data Transfer Statement
All your personal data is stored on servers located within mainland China. We will not transfer your personal information overseas without your explicit written consent. If cross-border data transmission is required for export business, we will sign standard contractual clauses (SCCs) to guarantee overseas data security as required by GDPR and Chinese data regulations.
4. Data Retention & Destruction Rules
We retain personal data only for the shortest period needed to fulfill corresponding business purposes:
- Inquiry & quotation records: Reserved for 3 years after the last communication for customer follow-up;
- Newsletter subscription information: Retained until you submit an unsubscribe request;
- Registered customer data: Stored until you apply for full data deletion;
- Anonymous website access logs: Automatically erased after 12 months.
Once the retention period expires or we receive your valid deletion application, we will permanently delete or irreversibly anonymize your personal information to eliminate all personal identification features.
5. Data Security Protection Measures
We adopt industry-standard multi-layer security safeguards to protect your data:
- End-to-end SSL encryption for all website access and form data transmission;
- Encrypted storage for sensitive information such as phone numbers and business contact details;
- Strict internal staff access permission control and regular privacy compliance training;
- Periodic server vulnerability scanning and firewall protection to resist cyberattacks.
Please note that no internet transmission or electronic storage method can achieve 100% absolute security, and we will promptly notify you within 72 hours if any confirmed data leakage risk occurs.
6. Your Legal Rights Over Personal Data
You enjoy the following complete rights regarding your personal information:
- Right of Access: Request a copy of all personal data we hold about you;
- Right of Rectification: Ask us to correct inaccurate or incomplete contact information;
- Right of Erasure: Submit a request to fully delete your personal data under our custody;
- Right of Restriction: Demand temporary suspension of data processing under specific circumstances;
- Right to Object: Refuse marketing email delivery or analytics cookie tracking;
- Right of Data Portability: Receive your data in a standard machine-readable format.
How to Exercise Your Rights
Send your identity verification materials and detailed request to our dedicated privacy mailbox: woolf@isentrol.com
We will respond to all valid applications within 15 working days without extra charge.
If you disagree with our handling results, EU users may file a complaint with local data supervisory authorities; domestic users can submit complaints through China’s national cyberspace administration channels.
7. Protection of Minors
Our website is oriented to industrial enterprise purchasers and business partners aged 18 and above. We do not intentionally collect personal information from minors under 16 years old. If we accidentally obtain minor data without guardian consent, we will permanently delete such information immediately after verification.
8. Updates to This Privacy Policy
We reserve the right to revise this Privacy Policy to adapt to updated laws and business adjustments. For material content changes, we will post reminder notifications on our website homepage and send emails to subscribed customers. The revised version takes effect once published on this page. We recommend reviewing this policy periodically.
9. Governing Law & Dispute Resolution
This Privacy Policy is governed by the laws of the People’s Republic of China. Any dispute arising out of this policy shall be submitted to the people’s court located in Jinan City, Shandong Province where our company is registered.
10. Contact Us
If you have any questions, suggestions or complaints about this Privacy Policy or data processing, please reach out to us:
Company Name: Shandong iSentrol Electronic Technology Co., Ltd.
Location: Jinan, Shandong Province, China
Dedicated Privacy Email: woolf@isentrol.com
Business Hotline: +86-13001715332
Working Hours: Monday to Saturday, 8:30 – 18:00 (GMT+8)