Thermometer and Heat Wave Icon - Visual Symbol for Temperature Monitoring #3691064 (License: Personal Use)

This monochrome vector illustration combines a traditional bulb-and-tube thermometer with undulating lines above it to symbolize rising temperature or thermal energy. The design uses bold, continuous strokes for high legibility at small sizes, making it suitable for digital interfaces and infographics. Its abstract yet intuitive form conveys concepts like heat stress, climate monitoring, or HVAC system status.

Commonly used in weather widgets, smart home dashboards, environmental monitoring platforms, and educational materials about thermodynamics or climate science; serves users seeking quick visual cues for temperature-related data.