Key benefits — why you need this aquarium temperature monitor Reliable, continuous temperature control: high-precision sensor chip measures water temperature every 5 seconds so you always know when conditions change. Long, maintenance-free operation: USB-C, 5V rechargeable sensor runs up to 45 days on a single charge, reducing interruptions and charger checks. Easy to use and unobtrusive: one-button temperature control and a compact 5 cm display with automatic brightness make monitoring simple without disturbing your aquascape. Modern, practical design: wireless concept and a 30-second auto-stop power-saving mode combine dependable performance with a clean, contemporary appearance. What it does and how it solves common problems Prevents sudden temperature swings from harming fish or plants by updating readings every 5 seconds and continuously recording temperature changes. Removes the hassle of frequent recharging; up to 45 days of continuous monitoring lets you focus on tank care instead of device maintenance. Ensures readable data at any time with an automatically adjusted display brightness that responds to ambient light while preserving battery life through auto-stop. Key features (clear, customer-focused) Measurement range: -9.9 °C to 50.0 °C — suitable for most freshwater and marine aquarium setups. Update frequency: refreshes readings every 5 seconds for timely alerts to temperature shifts. Power and charging: USB-C compatible, 5V rechargeable sensor; single charge provides up to 45 days continuous operation. Display: 5 cm screen with automatic brightness adjustment to stay readable day and night. Controls and operation: simplified temperature control via a single button; 30-second auto-stop to reduce power use when appropriate. Design: wireless concept and compact form factor that integrates with modern aquascapes while delivering functional reliability. Material and size notes Compact 5 cm display suitable for mounting or placement near the aquarium without dominating the setup. USB-C (5V) charging standard ensures wide compatibility with common chargers and power banks. Practical applications / use scenarios Home freshwater aquarium: maintain stable temperatures for tropical fish and live plants; quick 5-second updates help you react to heater malfunctions or room temperature changes. Reef and saltwater tanks: protect sensitive invertebrates and corals by continuously monitoring temperature and using the 45-day runtime to avoid gaps during busy periods or short trips. Retail or small aquaculture setups: monitor multiple tanks with a wireless, easy-to-read device that reduces daily maintenance and provides clear temperature logs for staff. Technical summary Temperature range: -9.9 °C to 50 °C Sensor: high-precision sensor chip Refresh rate: 5-second updates Display size: 5 cm, auto-adjusting brightness Power: USB-C compatible, 5V rechargeable Runtime: up to 45 days continuous on one charge Controls: single-button temperature control; 30-second auto-stop power-saving mode Concept: wireless design, compact and modern for aquascapes What to expect in daily use Fast, accurate readings every 5 seconds so you can trust current conditions. Minimal interaction: one-button controls and long battery life reduce time spent managing the device. Consistent visibility: automatic brightness keeps the 5 cm display readable without manual adjustments. This monitor provides precise, long-lasting, and user-friendly temperature monitoring designed specifically for aquariums, combining continuous data capture, power-efficient operation, and a compact, modern design.