Submersible Aquarium Heater 100W/200W/300W/500W, Fish Tank Heater with high-Temperature Protection and Turtle Tank Heater with Automatic Power-Off When Leaving seawater or Freshwater

🐟【Premium Safety & Durability】: This explosion-proof quartz glass aquarium heater is designed with safety and longevity in mind. Made from high-quality materials like explosion-proof quartz glass tubes and ultra-fast nickel-chromium heating wires, it ensures efficient and reliable performance. The thickened high-temperature-resistant black ABS shell adds extra durability, making it a long-lasting solution for your aquarium needs.

🐟【Versatile & Efficient Heating】: Perfect as a fish tank heater, turtle tank heater, or submersible heater, this device is suitable for a variety of aquatic environments. With silicon carbide heat conduction, it provides rapid and even heating, ensuring a stable temperature for your fish or turtles. The 100W aquarium heater is ideal for tanks ranging from 10 to 20 gallons.

🐟【Smart Dual Temperature System】: Featuring a dual temperature system, this heater allows you to freely switch between Fahrenheit and Celsius by holding both buttons on the temperature controller for 2-3 seconds. The intuitive design makes it easy to monitor and adjust the temperature, catering to both beginners and experienced aquarists.

🐟【Advanced Safety Features】: Equipped with high-temperature protection, the heater automatically shuts off when the temperature exceeds the set limit by 1 degree, preventing overheating. The waterless power-off function ensures the heater stops working when it is 5 cm above the water surface and restarts when submerged again. Additionally, an alarm will sound during high-temperature protection or waterless power-off, alerting you to potential issues.

🐟【User-Friendly Design & Easy Installation】: The heater comes with a sturdy suction cup on both the heater guard and thermometer, making it easy to install on the tank wall or bottom. The LED indicator turns red during heating and green when the set temperature is reached or exceeded, providing clear visual feedback. Its compact and efficient design ensures hassle-free use while keeping your aquatic pets safe and comfortable.