PriceSentinel Pro is a complete Python source code solution for automated competitor price monitoring. Track prices across multiple e-commerce platforms, analyze trends, and receive instant alerts. **What You Get:**• 7 modular Python scripts (main.py, scraper.py, parser.py, database.py, analyzer.py, notifier.py, exporter.py)• Support for 5 platforms: JD, Taobao/Tmall, PDD, Amazon, Shopee (extensible)• Multi-channel notifications: WeChat Work, Feishu, DingTalk, Telegram, Email• Price trend analysis with rule-based AI (no external API required)• Excel export and ASCII/PNG price charts• SQLite database for local data storage• Complete documentation and setup guide **Key Features:**• Modular, extensible architecture• Add new platforms by implementing BaseScraper and BaseParser• Add new notification channels by implementing BaseNotifier• Configurable check intervals and alert thresholds• Anti-detection measures (random delays, user-agent rotation)• Buy once, own forever - no subscription fees **Requirements:** Python 3.7+, requests, beautifulsoup4, openpyxl **Note:** This is source code, not a SaaS product. You run it on your own server/computer. --- **Disclaimer:** This product is for educational and research purposes only. Users are responsible for complying with target websites' terms of service. The developer is not liable for any direct or indirect damages resulting from the use of this product.