Aquarium Heater for 40-120 Gallon, 300W/500W Submersible Fish Tank Water Heater Accurate Digital Temperature Control, Over-Temp Protect, Auto Shut-Off, Quick Heat up for Saltwater & Freshwater Betta

Looking for an aquarium heater that provides accurate temperature control for your aquatic friends? Look no further! Our Aquarium Heater for 40-120 Gallon tanks is the perfect solution for ensuring a stable and comfortable water temperature for your fish. With an accuracy of +-1°F, our integrated design with PID temp-chip and nickel-chromium wires allows for quick temperature detection and regulations. Say goodbye to fluctuating water temperatures and hello to happy, thriving fish!

We prioritize the safety of your aquarium and its inhabitants. Our upgraded intelligent safety protection system includes features such as overheating protection, over-temperature protection, and a lack of water protection. When the water temperature exceeds 94℉, our LCD digital display will flash and display HH as a reminder. Additionally, our heater will automatically shut off in case of a lack of water. Rest assured, your fish will be safe and sound with our reliable heater.

Experience quick and efficient heating with our AHJ Aquarium Heater. Whether you have a 40-70 gallon tank (300Watt recommended) or a 75-120 gallon tank (500Watt recommended), our heater will heat up your water in no time. Worried about choosing the right size and watt for your tank? Don't stress! Our customer service team is here to assist you. Simply provide us with the length, width, and height of your tank, and we'll guide you towards the perfect heater for your needs.

Tired of getting your hands wet every time you need to adjust the temperature? Our external controller makes it easy-peasy! The heater must be fully submerged for proper functioning, but you can conveniently adjust the settings without having to touch any wet surfaces. Simply press the setting button on the external controller to cycle through the temperature settings. A red LED light indicates that the heater is working and heating the water, while a green LED light means that the water temperature is maintained steadily. Stay informed and in control with our user-friendly interface.

We take pride in offering high-quality products that are built to last. Before the delivery of our digital aquarium heater, we subject it to a 72-hour heating test in water to ensure its safety. The thick quartz tube, 1.5m/4.75 ft cable (U.S. UL Certified), and high-temperature resistant protective case guarantee durability. Trust in our product to prevent water plants from adhering to the quartz glass wall and to protect small fish from coming into contact with the quartz tube.

Upgrade your aquarium with our top-of-the-line Aquarium Heater for 40-120 Gallon tanks. Provide your fish, betta, turtle, or other aquatic creatures with the ideal water temperature for their wellbeing. Don't miss out on this opportunity to enhance their comfort and happiness. Get yours today and experience the difference! Click here to order now!