Top 6 Best External Aquarium Heater

SUPER MINI SIZE This aquarium heater is SUPER SHORT in length might be the shortest heater in the market. It is only a bit more than HALF of the length comparing with the traditional fish heaters The innovative super short length perfectly solves the headache of the fish keepers on the traditional aquarium heaters Takes up less space, easy to hide, but in full power Temperature range is 64-93F.. ACCURATE TEMPERATURE Thanks to the intelligent inverter technology, with the in-built chips the thermostat keeps the heater at a constant temperature at an accuracy of 1F, much more accurate than the traditional knob-controlled fish heaters. The thermostat shows 2 readings the current temperature and the set temperature very easy to operate.. DRY RUN OVERHEATING PROTECTION Full consideration of safety. With the multiple protections this fish tank heater will stop working when the water level is lower than the minimum water level DRY RUN PROTECTION or when the water temperature exceeds 97F OVERHEATING PROTECTION. You are free from cooking fish. MEMORY FUNCTION The last setting is stored in the chips of the thermostat. In case of a power cut, when the power recovers the fish tank heater will follow the last setting.. MULTIPLE USES This fish tank heater can be used for both fresh and marine water. It can be not only used as an aquarium heater, but can also work a turtle heater, pet fountain heater, and plant seedling heater..

Super Mini Size, 25Watt for 1-5 Gallons YukiHalu 25W aquarium heater is designed for 1-5 gallons mini fish tank. Compact design, take less space in the fish tank, easy to hide in the tank. Temperature can be accurately adjusted from 64 to 93F. This heater suitable for both saltwater and freshwater. The rated voltage is 100-130V.. Automatic Constant Temperature with 1AccuracyThanks to advanced Intelligent Frequency Conversion Technology, the water temperature can be kept constant with an accuracy of 1. The heater's working frequency will be changed according to temperature variation, and the heating is automatically stopped when the set temperature is reached. Compare to traditional heater, this new technology will cut down 49 electricity bill for you.. Overheating Protection, Out of Water ProtectionThe power will be cut off and stop heating automatically if the heater out of water or overheating. Protect your fish. Never cook your fish. 30days full refund, 12-months warranty.. External Temperature Controller, Never Wet Your HandsUse an external controller to set the temperature instead of immersing your hands in water to rotate the dial. Never wet your hands or contaminating your tank. Strong suction cups, easy to install.. Built-in Temperature Sensor, Power-off Memory FunctionDual built-in temperature sensor, the water temperature will be displayed on the external temperature controller in real time. No need to buy other aquarium temperature meter. The heater will remember the temperature setting, no need to reset the temperature after power off..

Digital LED Temperature Controller Digital aquarium heater precise temperature control, Accuracy1F, Real-time monitoring of water temperature ,the adjustable temperature range of the fish tank heaters is 59-93, the unique rotary switch design, the operation of setting the temperature is more simple and convenient, Aquarium Heaters digital LED thermostat placed outside the fish tank, when adjusting the temperature, no Don't worry about getting your hands wet from the water in the fish tank. Safety and Explosion-Proof 300W the adjustable Aquarium Heater is made of quartz glass, and the heating part is made of High temperature resistant alloy heating wire material, which is explosion-proof and durable. The inside of the inline aquarium heaters is sealed with integrated silicone to prevent electric leakage. Anti-Boiling Fish System When the water temperature reaches the set temperature, Submersible aquarium heaters the power will be automatically cut off. Intelligent induction design, when the fish tank water heater is exposed to the air out of water, it will display an E1 fault code, give a warning, and automatically cut off the power. When the water temperature exceeds 95F, the E2 fault code is displayed and the power is forced to shut off. High-Efficiency and Energy-Saving Design The aquarium water heater adopts a high-efficiency double-tube heating structure, fast heating, water heater for fish tank multi-stage frequency conversion design, intelligent power adjustment, the closer the water temperature is to the set temperature, the lower the power, frequency conversion heating, power saving and energy saving. After-Sales Service Welcome to choose our fish bowl heater to create a beautiful aquarium environment and enhance the experience of fish farming and watching fish. We attach great importance to product safety and quality issues and customer experience. If you have any questions, wholeheartedly solve them for you.

Simplify the controllerExtra long temperature control rangeAdjustable temp setting between 59F to 93F in 1-degree increments.Each time the controller button is pressed, the set value increases by 1. Press and hold the button for 1 second to enter the continuous addition setting. After the button is not operated for 3 seconds, it will automatically exit the temp setting.. LED DIGITAL DISPLAY The built-in LED display shows the real-time Water Temp and Power, and the temp is accurate to 0.1F when the water temp reaches the set temp value, the heater will stop heating, and Power is displayed as 0.Beeping alert system when heater use in a wrong way.. Intelligent frequency conversion thermostatBased on Japan Renesas chipset, , When the water temp in the fish tank is 1 lower than the set temp, the heater will output the maximum power. When the water temp is 0.10.9 lower than the set temp, the heater will switch to the frequency conversion constant temp mode to work. Compared with ordinary heater, it can save one-third of the electricity bill.. Dual sensor modeIf one of the two sensors is damaged, the display will display E1, and the heater will stop working. Although there is still one sensor that can work, it will increase the risk of cooking fish. When an error code appears indicating 'E1', please contact us for after-sales service.500 WATT aquarium heater is recommended for 60-120 gallon freshwater aquariums.. SAFE Beeping alert system will work when heater use in a wrong way. Submersible Aquarium Heater is constructed of explosion- proof titanium and The Plastic guard which prevents fish from coming into contact with the heating and prevent burnout..

Aquarium heater with dual temperature sensors provide accurate and real-time water temperatures. LCD temperature display available in both Fahrenheit and Celsius with a range of 68 to 93 degrees Fahrenheit. Fast heat technology built with a safety shut-off and integrated fish guard to protect fish and invertebrates. Equipped with a slim profile mounting bracket and colored display alert system.