Aquarium Submersible Heater (25W) with HD Display, Thermometer & Safety Control

Information about AQQA Powerful and Compact 25W Aquarium HeaterKeep your small aquatic world at the perfect temperature with our powerful and compact 25W aquarium heater. Designed for tanks from 5-20 liters, this heater ensures a stable and comfortable environment for your fish. It automatically heats your tank when the temperature drops 1℉ below your set point and stops once it reaches the desired temperature.External Controller with Built-in ThermometerThis heater includes an external controller with a built-in thermometer for easy and precise temperature management. The HD LED display shows the current water temperature in real time. A red light on the display indicates when the heater is actively warming the water, and it turns off once the target temperature is reached. The display also shows error codes for quick troubleshooting if a fault occurs. Remember to keep the controller out of the water, as it is not waterproof.Simple and Safe OperationSetting your ideal temperature is simple. Just press the button until you reach your desired value, which can be anywhere from 59℉ to 93℉. The display will flash your setting three times before returning to the current water temperature, confirming your selection.Safety is a top priority with our heater. It features an advanced explosion-proof quartz heating tube and a dry-burn control system that automatically shuts off the heater and displays an “Er” code if it runs dry. It also has over-temperature protection, stopping heating and showing an “EE” code if the water temperature exceeds 95℉. The durable plastic shell also helps prevent scalding.