fishkeeper Aquarium Heater, 500W Submersible Fish Tank Heater, with LED Screen & Multi-Protection, Intelligent Frequency Conversion Temperature Control for 53-87 Gal Freshwater Tank

• Precise Temperature Control with PID Technology: Our aquarium heater features advanced PID temperature control technology, which combines proportional, integral, and derivative control to ensure precise temperature regulation. With an accuracy of ±1℉ and a temperature range of 59-93℉, The heater stops heating when the temperature reaches the set point and starts heating when the temperature drops below the desired level. it provides a comfortable and safe environment for your fish tank. Suitable for 53-87gallon tanks, it maintains a stable water temperature for optimal aquatic life. Premium Material and Explosion-Proof Design: Our Fish Heater is made of high-quality materials for safety and durability. The heating element is made of fast-heating nickel-chromium wire and explosion-proof quartz tube. The outer shell is made of ABS high-temperature resistant protective casing, providing protection against burns for your fish. It also comes with a UR-certified triangular plug, ensuring a high level of safety Multiple Protection Functions for Enhanced Safety: We prioritize the safety of your fish tank. The built-in protection system offers multiple safeguards. ✅Automatic power-off when out of water to prevent dry heating and displaying "Auto shut off" on the LED screen. ✅overheat protection automatically stopping heating when water temperature exceeds 93°F with the screen flashing "HH" as an alarm. ✅low-temperature alert automatically restarting heating when water temperature falls below 59°F with the screen flashing "LL" as an alarm✅ power-off memory function Intelligent and User-Friendly: Our fish tank heater is equipped with an LED digital display screen for convenient monitoring. The screen shows real-time temperature, pre-set temperature (displayed in Fahrenheit and not convertible to Celsius), and watte power. When the heater is actively heating, the screen's edge will illuminate in red, transitioning to white when the heating process stops. With its intelligent temperature control system, our heater ensures simplicity and efficiency in maintaining the ideal water temperature for your fish Easy Installation and Complete Submersion: Our heater comes with two strong suction cups for easy installation. Whether you prefer vertical or horizontal placement, the suction cups easily adhere to the inner walls or bottom of your fish tank. It is important to fully submerge the heater in water before connecting it to a power source. This proper usage will extend the lifespan of the heater