AHJ Aquarium Heater for 40-55-75 Gallon 300W Submersible Fish Tank Water Heater with Accurate Temperature Control Over-Temp Protect

Product description The heating rod can be sideways, erected, and placed in the water obliquely. Just ensure that the water level line is immersed in water. Why does the LED display display E1 code error? The water level is too low. Make sure the heater and the temperature sensor on top are fully immersed in the water. (The heating rod cannot be covered with sediment, otherwise it will cause damage due to uneven heating. ) Why does the LED display display HH/LL code error? HH: Water temperature exceeds 94°F, over-temperature warning and the aquarium will stop heating. LL: Low temperature warning when the water temperature is lower than the set value. This usually happens during a water change. After a few months of use, the heater failed and the temperature was inaccurate. what do I do? Deposits attached to glass tubes can affect temperature sensing and transmission. Please cut off the power supply, clean the heater and remove any attached sediments. (Soak the heater in 84 for 1-2 hours). Why did the plastic casing of the heating rod melt? When changing or cleaning the aquarium. Turn off the heater first. Note: Wait at least 10 minutes before removing the heater from the water. Otherwise, the internal glass heating tubes will melt the heater shell instantly at temperatures above 400°F. The

Highlights: 🐟🌡️[Accurate Temperature Control +-1 °F] 🐟 It ensures the water temperature is accurate at the setting temperature +-1°F. Different from others, thanks to the integrated design in which the PID temp-chip and nickel-chromium wires are connected directly. When the AHJ aquarium heater is in the water, it could detect the real temperature super fast and make regulations quickly. Ensure a stable and warm water comfortable for your aquatic fishes, betta, turtle 🐟🌡️[Upgrade Intelligent Safety Protection] 🐟Protection against overheating, Over-temperature, and lack of water protection, Anti-dry burning functions. Safeguard your fish and aquarium with advanced safety measures. When the water temperature exceeds 94℉, the LCD digital display will display HH and keep flashing to remind. When the digit heater detects the fish tank's lack of water, it will auto-shut off 🐟🌡️[Heating Fast & Keeps Stable] 🐟Enjoy fast and efficient heating with the AHJ aquarium heater. Quick temperature adjustment, hassle-free setup. Experience rapid heating for your 40-70 gallon (recommend 300 watts). If you are not sure which size and watt suits your fish tank, please measure the L W H, and contact our customer service 🐟🌡️[External Controller Easy to Use] 🐟The heater must be fully submerged to work properly. Conveniently adjust settings by the external controller without wetting your hands. Press the setting button, the thermometer will change 1℉(63℉-93℉) cycle setting. Red

Key details: Item Weight: 1.34 pounds | Customer Reviews: 4.3 4.3 out of 5 stars (401) 4.3 out of 5 stars | Item Package Dimensions L x W x H: 15.71 x 4.61 x 2.52 inches | Brand Name: AHJ | Target Audience Keyword: Fish | Directions: all | Warranty Description: 1 year | Model Name: Fish tank heater | Color: Black | Size: 300W(40-55-75 Gallon)

What you can expect: 🐟🌡️[Accurate Temperature Control +-1 °F] 🐟 It ensures the water temperature is accurate at the setting temperature +-1°F. Different from others, thanks to the integrated design in which the PID temp-chip and nickel-chromium wires are connected directly. When the AHJ aquarium heater is in the water, it could detect the real temperature super fast and make regulations quickly. Ensure a stable and warm water comfortable for your aquatic fishes, betta, turtle 🐟🌡️[Upgrade Intelligent Safety Protection] 🐟Protection against overheating, Over-temperature, and lack of water protection, Anti-dry burning functions. Safeguard your fish and aquarium with advanced safety measures. When the water temperature exceeds 94℉, the LCD digital display will display HH and keep flashing to remind. When the digit heater detects the fish tank's lack of water, it will auto-shut off 🐟🌡️[Heating Fast & Keeps Stable] 🐟Enjoy fast and efficient heating with the AHJ aquarium heater. Quick temperature adjustment, hassle-free setup. Experience rapid heating for your 40-70 gallon (recommend 300 watts). If you are not sure which size and watt suits your fish tank, please measure the L W H, and contact our customer service 🐟🌡️[External Controller Easy to Use] 🐟The heater must be fully submerged to work properly. Conveniently adjust settings by the external controller without wetting your hands. Press the setting button, the thermometer will change 1℉(63℉-93℉) cycle setting. Red LED light on means the heater working and the water is heating. Blue LED light on means the water temperature

Customer feedback: 4.3/5 average rating.

Customers say: Customers find the aquarium heater maintains the right temperature in their tanks and appreciate its easy-to-read display with maximum and minimum temperature settings.

Review snippets: Super heater for my 55-gallon aquarium. Easy to program the desired temperature, and it stays at that temperature nearly spot-on. Easy to read desired & actual temperatures. Seems very durable & reliable. Read more / Have used it now for several weeks and works well. Perfect size for my 55gal tank. The digital display clear and shows how well the temperature holds. Read more

From the brand Share happy time with family Gifts for Aquarium Lovers and Fish Keepers Previous page There are many people who love aquariums and fish, but also those who don’t know much about them. If you have a friend who loves fish and you are looking for gifts for aquarium lovers but doesn’t know where to get started, this list is perfect for you! Whether you're a seasoned aquarist or a beginner, our aquarium series promises to create a thriving aquatic world, where life flourishes in perfect harmony！ Heaters and Aquarium Light Planted Aquarium Light How start? We started this aquarium series with a passion for creating innovative, reliable products that cater to the needs of aquatic enthusiasts. What makes our unique? Our products are unique for their blend of advanced technology, safety design, and a deep focus on enhancing the beauty and health of aquariums. Are our goods of the quality? Yes, our products are of the highest quality, built with premium materials and strict attention to detail. Each item undergoes rigorous testing to ensure long-lasting performance and reliability, providing customers with peace of mind for their aquariums. Next page