50W Small Submersible Heater: Suitable for 5-10 gallon fish tank; Temperature Control Range 59℉-93℉; When the temperature is lower than the set value 1℉, the heater will automatically heat up; Automatically stop heating when the set temperature is reached External Controller and Built-in Thermometer: Fish tank heater with a built-in thermometer, display water temperature of the fish tank in real time; HD LED display, the red light when heating, red light off when the temperature is constant, and display error code when the heater fault; The controller is not waterproof, please do not put it into water Easy To Use: Set temperature by press the button until reach your desired temperature value; The display will flash the desired temperature value three times, then return displaying the current water temperature, setting is done; You can press the button persistently to display 59-93℉ in a cycle Protects Dry Burn Control System: Adopt advanced explosion-proof quartz heating tube, anti-dry burning system and overtemperature etc double protection more safer; When the heater tube running dry, the display shows “Er”, auto stop heating; When the water temperature exceeds 95℉, the controller displays "EE", auto stop heating Small And Exquisite: Small shape is ideal for small aquarium tanks; Made of premium material and with scientific design; Plastic shell can effectively isolate part of the temperature and prevent scalding fish; Suitable for freshwater and saltwater Welcome to AQQA
AQQA is a professional shop specializing in aquarium supplies and accessories,all products from this store the actual filming of goods please rest assured that you purchasers to buy!
We are determined to provide better product and better services to our customers.Our customer service is online 24 hours, providing pre-sale, sale, after-sale service, the product implements a free return policy, Free replacement within 3 months. If you have any questions, please feel free to contact us.
AQQA--Aquarium accessories,Quality Assurance

Product Description
Product Name:AQQA Aquarium Submersible Heater
Size:25W 50W 100W 150W
Voltage:110-120V/60Hz
Cord length：2.6ft+3.9ft
Controller:External Controller（Not waterproof）
Temp Accuracy：±1℉
Suggest fish tank size:1-21 gallon
Package included:1×heater with external controller 1×user manual 3×suction cups

What The Screen Shows
1.Display shows"Er":Shut off automatically when the heater exposed to air,not fully submerged.
2.Display shows"EE":Temp pass 95℉(35℃)

What The Lights Mean
1.Red Light off:Constant temperature,the water temperature is at the set temperature value
2.Red Light:The heater is heating
3.Error code Er/EL/H1/H2/E1/E2/EE:Heater fault

Note
1.Please check all the items to inspect condition when unboxing the package.
2.Please read the instructions carefully. Use and follow the instructions strictly
3.Please choose the suitable size for aquarium.
4.Please place the heater in the way of water flow and don't bury it.
5.Please place the heater submersible fully when it's on duty, unplug the heater and wait for 15 minutes before changing water or remove heater.

WARRANTY
1-year free warranty.

If you have any questions, please contact us, wish shopping happy