best small automatic aquarium tank saltwater glass heater with cover

● Both internal and external thermolator available for easy operation

● Adjustable temperature from 20-34℃(68-94℉). Maintain constant and stable temperatures  for your aquatic creatures.

● Antiflaming heater cover can prevent fish from going too close to the heater.

● Double sensing probes on the top of heater provide more precise induction.

● It can ensure the temperature constant at the set point as it can adjust heating power  automatically if there is any water temperature variation.

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best small automatic aquarium tank saltwater glass heater with cover

Item Name

HL-388 Explosion-Proof and Led Display Heater

Easy To Read LED Temperature – Built in with LED read out Fahrenheit display that makes reading the temperature easy or display an Error code if there are any problem with the temperature and sensor.
Adjustable Temperature External Setting – Simply submerge the heating element under the water and use external temperature controller adjust your temperature setting 68℉ to 94℉ or 20℃ to 34℃.
Auto-Off Power When leaving Water-After being taken from fish tank, it will stop heating immediately, then showing E1 at the same time.
The waterproof of the aquarium heater is IP68, which must be submersible when using.

Cause the quartz, the products are suitable for freshwater and saltwater.
With precise temperature control, its temperature error is just 1℃.
The heating rod is explosion-proof for the super-hard quartz, not normal glass.
The heater works as Ladder-type, energy saving.

Please ensure that local voltage and product voltage are consistent.
Do not use this product for other purpose than specified use.
Do not use the appliance that not provided by manufacturer, it might be harmful to product and person.
Please ensure your hands are dry to turn on or turn off the power.
When the product breaks down, please cut off the power immediately.
If you have any questions about the installation or safety of the product, you can consult the local qualified electrician.

Please do not put your hands into the water in the fish tank before turning off all the power supply in the tank.
Please clean the heater or the tank within 15-20 minutes after power off for cooling to avoid burn.
Do not use detergents, solutions, acidic liquids and other cleaning appliances.
Please keep the child or person under disability away from the product. Don’t let child play the product as a toy.
The heater must be completely submerged or can’t be used outside the water. Do not place the heater under the gravel. This will restrain the distribution of heat. Place the heater horizontally at the bottom of the aquarium (above the gravel) where water circulates freely. Using a water pump to create water circulation is recommended.
Please pay attention to the change of the water temperature for the first application within one week.

Please read the instructions carefully before using.


Zhongshan Sea Billion Electrical Appliance Co., Ltd is a professional manufacturer of aquarium accessories over 10 years
We are specializing in manufacturing aquarium accessories.Product rang :Full set of aquarium,Filter pump,Air pump, Lamp,UV
Sterilizer,Heater to accessories and other pet products.The products positioning is middle and top grade
and mainly for the European Union and domestic markets.
Our products have complate qualification certificate which including CE,UL,FCC,ROHS and CCC.

Your inquiry related to our products or prices will be replied in 24 hours
Well-traded and experienced staffs to answer all your inquiries in fluent English
Any your customized lightings we can help you to design and put into product
Monthly output over 10000pcs
Single package in blister or color-box
Sample order in small quantity is acceptable



We accpet sample order, you can test the product first,
We trust our product, and trust you will do a good choice.


1.Are you factory ?
Yes,we are factory.

2. Are they all size can do for single and RGB ?
Yes, all of our size we can do for single color or RGB.

3. What type of the tube ?

We used the Glass, best color effect.

4. Are they safe when ship ?
Yes, we will protect them well.

5. How to order and do you accept sample ?
Yes, we accept sample, and welcome to test them first.

We hope to cooperate with more friends at home and abroad in deep sincere and create a better tomorrow together! Haiyi Electrical
Appliance Co., Ltd invites you to be our partners sincerely!
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