Solar Powered, Never Runs Out of Energy: Innovative solar charging technology eliminates battery replacements. Harvests energy from both sunlight and indoor lighting, providing 24/7/365 temperature monitoring for your water. Dual-Screen Anti-Fog Tech: Patented anti-condensation coating + dual-sided LED display keeps readings clear even in sudden temperature changes. Easy to read from any angle. High-Precision Sensor (±1°F/°C) with 5-Second Auto Updates: Equipped with Industrial-grade temperature sensor chip (±1°F/°C accuracy) that refreshes every 5 seconds - like having a professional water quality specialist constantly updating you. IPX7 Waterproof with ℃/℉ Switchable Display: Certified with IPX7 waterproof rating (submersible up to 3m). One-touch switching between Celsius/Fahrenheit accommodates users worldwide. Compact & Portable for Multiple Applications: Streamlined palm-sized design fits anywhere. Perfect for private pools, tropical aquariums, spa baths, baby tubs, and beyond - fulfilling all your water monitoring needs.