Accurate aquarium thermometer — 0–40°C, designed to sit inside your tank with either a suction cup or tube-style mount. Key benefits Keeps fish and aquatic life safe by giving a clear, inside-tank water temperature readout. Prevents temperature-related stress and helps you maintain stable conditions for plants, corals, and livestock. Two mounting options (suction cup or tube shape) let you install the sensor where it gives the most reliable reading. Features Temperature range: 0–40°C for typical aquarium and general water monitoring. Mounting options: choose the suction cup for glass placement or the tube-shaped sensor for insertion and secure positioning inside the tank. Function: accurately measures the temperature of aquarium water and other water types used in aquatic setups. Placement: designed to be installed inside the aquarium for direct, representative temperature readings. Compatibility and performance Suitable for freshwater and saltwater aquarium applications and other enclosed water containers where in-water temperature readings are required. Internal placement ensures measurements reflect actual tank conditions rather than air temperature. Typical use scenarios Home aquariums: monitor tank temperature to protect tropical fish and maintain consistent heater settings. Quarantine or breeding tanks: track temperature closely during sensitive life stages. Reef and planted tanks: verify stable conditions for corals and aquatic plants. Simple to install and use: position the sensor inside the tank using the suction cup or place the tube-style sensor where it best represents tank water, then monitor to maintain ideal conditions.