fishkeeper Aquarium Heater with Intelligent LED AlarmTemperature Controller, 500W Submersible Fish Tank Heater for 66-135 Gallon, Leaving Water Automatically Stop Heating, for Freshwater Saltwater

Features

• Upgraded Material for Superior Durability: fishkeeper fish tank heater uses nickel-chromium resistance wire for efficient and rapid heating, and the 0.6-inch thick quartz glass conducts heat. The shell is made of ASB material, which has excellent characteristics of high temperature resistance and corrosion resistance. Compared with other competing products, ours adopts triple-sealed waterproofing, and the waterproof effect is greatly enhanced. It is equipped with a UL-certified three-pin plug and power cord, and the power cord is thickened to 1 square core, making it safer
• Multiple Safety Features for Enhanced Protection: This submersible fish tank heater is equipped with multiple safety mechanisms to ensure the well-being of your aquatic environment. It includes dual relay protection circuits, dual temperature probes for accurate monitoring, and triple-sealed waterproof design. Additional safety features such as auto shut-off when out of water (E1), overheat protection (HH), low-temperature protection (LL), and abnormal temperature alerts (E2) significantly enhance the heater's reliability and safety
• Intelligent Temperature Controller with Alarm Prompt Button: The controller features a large LED display that shows real-time power and water temperature. Once the preset temperature is set, the display will automatically show the aquarium's current temperature. The controller includes an automatic power-off feature when the aquarium heater is out of water and high-temperature alarm prompts button. The "Heating" light on the panel indicates when the heater is active. With two adjustment buttons, you can easily and quickly set the desired temperature without the need for repeated adjustments, making it more convenient than single-button controllers
• Intelligent PID Temperature Control: The Fishkeeper Aquarium Heater features advanced PID frequency conversion temperature control. After setting the desired temperature, the display will automatically show the aquarium's water temperature within 5 seconds. You can adjust the temperature by 0.5F increments. The heater will automatically activate when the water temperature drops 0.6F below the set point and maintain a constant temperature when it exceeds the set point by 0.6F
• Precise and Visible Temperature Regulation: The temperature settings can be easily adjusted and displayed on the LED screen, making it both smart and user-friendly. The adjustable temperature range is from 63F to 93F, with 0.5F increments. The 500W tank heater is suitable for aquariums ranging from 66-135 gallons, and it works well in both freshwater and saltwater environments. The aquarium betta heater also has a power failure memory function, automatically restoring the previous settings after a power outage, eliminating the need for reconfiguration