Precise, reliable aquarium temperature monitoring that is simple to use and low maintenance Key benefits Accurate temperature control: High-precision sensor chip measures water temperature from -9.9 °C to 50 °C with updates every 5 seconds, so you can track fluctuations and maintain stable conditions for fish, plants, and corals. Long, maintenance-free operation: USB-C (5 V) rechargeable battery delivers up to 45 days of use between charges, minimizing interruptions in temperature monitoring without needing extra accessories. Easy, no-fuss operation: Single-button control for quick temperature checks and simplified adjustments. A 30-second auto-off feature conserves battery when the device is not in active use. Clear display in any light: Large digital screen with automatic night backlight ensures readable temperature readings in bright daylight and in dark rooms. What makes it stand out Fast refresh rate (5 seconds) and a high-precision sensor provide timely, dependable readings so you can respond quickly to thermal changes. Wireless-minded design lets you position the device where it’s most useful without cluttering the tank area. Combines functional reliability with a clean, modern appearance that fits demanding aquarium landscapes. Function and compatibility Purpose-built for aquarium use: suitable for home freshwater and saltwater aquariums, planted aquascapes, and reef or breeding setups that require stable temperature control. Rechargeable via USB-C (5 V) — no disposable batteries required and no extra accessories needed for normal operation. Readable in direct sunlight and in low-light conditions thanks to the large display and automatic backlight. Performance highlights Measurement range: -9.9 °C to 50 °C Update interval: 5 seconds Power: USB-C 5 V rechargeable battery, up to 45 days per charge Power-saving auto-off: 30-second automatic stop when idle Practical use scenarios Home tropical aquarium: Monitor temperature continuously to protect sensitive fish species and ensure heater settings are correct. Planted aquascape or reef tank: Keep stable temperatures for plants and corals where even small deviations can affect health and growth. Breeding or quarantine tanks: Quick, accurate readings and long battery life make it easy to maintain precise conditions during critical stages. What you get A compact, rechargeable aquarium thermometer with a high-precision sensor, large readable display with auto backlight, single-button operation, 5-second updates, and up to 45 days of use per charge. Simple to use, reliable in performance, and designed for clear readings in any lighting, this thermometer provides the essential temperature control tools required by hobbyists and advanced aquarium setups alike.