Fluval Aquarium Heater E200 A773

The most technologically advanced submersible aquarium heater of our time, featuring the new VueTech technology. Its LCD display provides a reassuring feeling with its continuous real-time water temperature reading. During operation, the temperature display changes color if the water temperature deviates from the preset level. If external heat sources or other factors cause an excessive rise or drop in the aquarium water temperature, the colored screen starts to flash to indicate a potential risk.