ZALALOVA 300W/500W Aquarium Fish Tank Heater with LED Digital Display with Over-Temperature Protection for Saltwater and Freshwater

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. The stronger black shell is a high temperature resistant ABS material which protect the fish. This fish tank heater has a unique intelligent temperature and water sensor system, the heater will automatically stop heating when the heater is out of water or it rapidly heats beyond the set temperature

• Safe and Durable Fish Tank Heater: The components of this 300W fish tank heater are designed for safety and durability, and encased in a high-durability ABS shell. The nickel-chromium heating wire and quartz glass are made of high-temperature resistant materials, along with explosion-proof quartz sand, giving the product a high level of safety and durability.
• Rapid Heating and Two Temperature Control System: 300W aquarium heater is sutable for 31-53 gallon fish tank and made of the most stable nickel-chromium heating wire, which can quickly and stably conduct heat to the surroundings. It has a built-in temperature control system of Fahrenheit and Celsius(Temp range: 59-93℉/15-34℃).
• Accurate External Digital Display Controller: The external IC temp controller of this aquarium water heater can show the water temp with 3 LED digits. Red light on means rapid heating, yellow light is energy conservaion, green light is standby. The temperature in Fahrenheit and Celsius can be switched by pressing and holding both buttons for 5-8 seconds. To set the temp, just press the button over and over until the screen displaying the temp you desired, the setting is done.
• Intelligent Water Sensor and over Temperature Protection: This fish tank heater has a unique intelligent temperature and water sensor system, the heater will automatically power off when the heater is 5cm above the water furface, and the controller will display "E1". When the water temperature exceeds 2 ℉ more than the set temp, the tank heater will automatically stop heating, when the water temp is cool down to 2 ℉ less than the set temp, the aquarium heater will restart heating.
• 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.