Feature: 1. INTELLIGENT FREQUENCY CONVERSION: Aquarium frequency conversion heater adopts AI intelligent chip, intelligent frequency conversion, automatic constant temperature, titanium alloy stable heat conduction, frequency conversion heating, fast heat up, energy saving and power saving. Outside the cylinder control, one key cycle, easy to operate. 2. IC CHIP: Fish tank heater adopts IC chip, PID computer control system. Mini body, suitable for a variety of fish tanks, dual temperature sensing probe, sensitive detection, abnormal temperature safety. When the heating rod working state, the red light is on, stop heating constant temperature state, the blue light is on. 3. OFF WATER POWER OFF: Aquarium heater has built in power off function, when the heating rod leaves the water surface, the LED screen will show L1 and keep flashing to remind, and the heating rod will stop heating. When changing water, please unplug the power switch first to avoid the residual temperature of the heating body to damage the shell. 4. OVER TEMPERATURE PROTECTION: Fish tank frequency conversion heater has a built in over temperature protection system. When the water temperature exceeds 34℃, the screen will display HH and flash to remind and stop heating at the same time, when the water temperature is lower than 15℃, it will prompt LL and low temperature alarm. 5. LED DISPLAY: Fish tank heater starts with an instantaneous burst of heat to quickly heat up to the specified temperature, and turn to intelligent thermostat mode after reaching the specified temperature, energy saving and power saving. With LED display set temperature and real‑time water temperature, high definition display. Specification: Item Type: Fish Tank Frequency Conversion Heater Material: ABS Use: Fish Tank Heating Rod Power: 200W Temperature Control Range: 15-34℃ Applicable Water Volume: 50L. Package List: 1 x Fish Tank Frequency Conversion Heater 2 x Suction Cup Note: 1. Use the heating rod completely submerged in water, to prevent burning the rod body, melting the protective shell and other situations cause unnecessary trouble.2. Because the heating rod heats up fast, try to place the heating rod in a location with rapid water flow for even heating of the tank.3. It is not recommended to put the heating rod in the bottom filter, because some bottom filter water level is not enough to submerge the rod body, which may lead to accidents.4. Please do not bury the heating rod in the bottom of the aquarium gravel and soil, because the gravel and water have different specific heat capacity, which will lead to damage to the heating rod.5. The heating rod will work with a slight electrostatic (12V or less) is safe, please rest assured that the use.