ZazaFi Aquarium Heater 300W, Fish Tank Heater with High-Temperature Protection and Turtle Tank Heater with Automatic Power-Off When Leaving Seawater or Freshwater.

【Fast Heating & Dual Temperature Control System】300W aquarium heater is suitable for 40-75 gallon fish tanks, made of the most stable nickel-chromium heating wire, which can quickly and stably conduct heat to the surrounding environment. It has built-in Fahrenheit and Celsius temperature control system (temperature range: 63-94℉/17-34℃). You can press and hold the plus and minus buttons next to the controller for 2-3 seconds at the same time to switch.

【Explosion-proof Quartz Glass Aquarium Heater】The submersible aquarium heater is made of explosion-proof quartz glass material and a high-temperature resistant nickel-chromium heating wire with silicon carbide heat conduction, faster water heating and longer lasting. And the stronger black shell is a high temperature resistant ABS material which protect the fish, your aquatic organisms and you from scalding.

【Accurate External Digital Display Controller】This external IC temperature controller for aquarium water heater can display the water temperature through two-digit white LED digits. The temperature display is in Fahrenheit and Celsius. To set the temperature, just press and hold the plus and minus buttons until the screen displays the desired temperature, the setting is completed, and the LED light will display the current water temperature again.

【Wide Range of Use】This 300 watt adjustable aquarium heater is suitable for many occasions. The fish market is a common place for us. It can maintain the freshness of fish. They are also suitable for places where aquatic life such as fish tanks, aquariums, and small fish ponds are kept. There are strong suction cups on the heater guard and the thermometer, it's easy to install the aquarium heater no to the tank walls or bottom, please keep them fully submerged.

【Intelligent Water Sensor and Over Temperature Protection】This fish tank heater has a unique intelligent temperature and water sensor system, the heater will automatically stop heating when the heater is completely out of water or it rapidly heats beyond the set temperature, the indicator light will turn green in both cases to ensure the maximum safety of you and your aquatic organisms just like protecting our own safety.