AQUAEL ULTRA HEATER is a technologically advanced device whose housing is made of special composite plastic. This makes the heater unbreakable and highly resistant even to strong impacts. The device is also noticeable for its functional shape: it is flat, thin and small in size, which means that it can be easily made inconspicuous in an aquarium. Thanks to the handy double hanger, the heater can be mounted on any of the aquarium walls. The freedom of installation is further increased by the fact that ULTRA HEATER can operate in any position, horizontal as well as vertical. The heater is controlled by an extremely convenient ONE-TOUCH system consisting of a single button and a ring of LEDs indicating the current and programmed temperature. The electronic thermostat operates with an exceptional precision of +/- 0.25 ° C, maintaining a constant temperature in the aquarium, which ensures thermal comfort even to the most sensitive species of aquarium animals. The temperature regulation range is between 20 and 33 ° C , which allows the heater to be used to treat many fish diseases. ULTRA HEATER also has a built-in system to prevent overheating of water in hot weather. Unbreakable housingmade of plastic makes the ULTRA HEATER heaters perfectly suitable for tanks with large, strong fish and even water turtles. At the same time, they are completely safe and do not infiltrate the inhabitants of the aquarium , even as sensitive as brine or rays.