Heat Stress Survival Tool

Heat Stress Survival Tool is a professional-grade heat stress and Wet Bulb Globe Temperature (WBGT) simulator designed for standalone use without requiring Wi-Fi or GPS connectivity. This application estimates the WBGT heat stress index based on a semi-physical model aligned with ISO 7243:2017 ("Ergonomics of the thermal environment — Assessment of heat stress using the WBGT index"). [1. Key Features] • Standalone & Offline Privacy: Operates entirely on-device without GPS or Wi-Fi connections, ensuring absolute data privacy and reliable performance in remote or signal-restricted environments. • Past, Present & Future Simulation: Plan ahead or analyze past events by freely configuring dates, times, meteorological conditions, and locations. • True Solar Time: Astronomical solar time recalculated based on the exact latitude and longitude of the chosen location and local standard time. • Triple Mode Estimation: Computes Outdoor, Shaded, and Indoor WBGT simultaneously to match your specific surroundings. • Workload Customization: Features ISO 7243 physical workload classes (Class 0 to Class 4) to assess permissible work-rest limits. • Heat Acclimatization Toggle: Dynamically adjusts WBGT reference limits based on user acclimatization status. • Interactive Map Location: Estimate solar radiation and localized parameters simply by selecting coordinates on a world map. • Unit Flexibility: Seamlessly switch between Celsius (°C) and Fahrenheit (°F). [2. Privacy & Data Handling] • On-Device Processing: All calculations and user inputs are processed locally on your device. • Zero Data Tracking: No background location logging, telemetry, or personal data collection. [3. System Requirements] • Android 8.0 or higher [4. Disclaimer] This software is designed strictly for informational and educational purposes to assist in heat stress awareness. It is NOT a medical device and should not replace calibrated, professional-grade thermal environment measuring instruments. Always prioritize actual field conditions, personal health status, and local safety regulations. The developer assumes no liability for any direct, indirect, or consequential damages arising from the use of this software. This app is an independent simulator and is not officially affiliated with or endorsed by the ISO. [5. Acknowledgments] The underlying estimation algorithms (Watanabe-Gemini Models 1 & 2) and software architecture were co-developed in technical collaboration with Google's AI model, Gemini. Special gratitude is extended for the support in object-oriented design and meteorological heat stress estimation logic. [6. Contact Us] LP&D LABORATORY https://www.lpd-lab.com/e/contact-us/