Product: hygger 300W Aquarium Heater for Fresh-Water Salt-Water, with External Digital Display Thermostat Controller and Thermometer, Auto Quartz Submersible Heater for Fish Tank 30-60 Gallon
Brand: hygger
Hygger 300W digital quartz glass aquarium heater is specially designed for medium and large fish tank use,
 fast heating up for 30-60gallon aquariums.
It comes with 1 quartz heater, 1 IC temp controller and 1 thermometer, the cables are all long enough for use indoors.

Other features of submersible heater:
1. Fast heating and reliable, fully automatic control.
2. Black plastic heater guard with suction cups
3. For freshwater and saltwater use
4. The controller with memory function in case of power-down.

How to use the temp setting?
 Press the button on the controller over and over, the set temp digits will go circularly from 61 to 90, when
 you set it to the digit you want, stop and wait the led flashing for 3 times, then the setting is done and
the led will go on displaying the water temp.

Heating indicator light
 There are 2 indicator lights below the display screen, the left light will on red when the heater is heating,
the right light will on green when it stops heating.

Over temperature protection.
The fish tank heater will auto shut off if water temp is over 97℉, and will automatically turn normal
 work when water temp is less than 95℉.

Use directions
1. Keep the heater and thermometer fully submerged.
2. Don’t bury the heater under gravels or sands.
3. Keep the temp controller away from water.
4. Keep water circulation as far as possible.
5. Unplug the heater and wait it cool down before doing water changes.

Specification:
Voltage:110-120V/60HZ
 Heater tube material: quartz glass
Plug: three-pin US plug
Power cord: heater cord 6ft，the controller cord 5ft, the thermometer cord 4.6ft
Temp control range: 61-90℉
Temp accuracy: ±1℉
 Size: 300W (30-60 gallon), 500W (60-120 gallon)
【Quickly Heat Up】Voltage 110-120V/60HZ, power 300W, US three-pin plug, heater rod length 7.7 inch. Fast heating up aquarium heater, it takes about 3 minutes to heat 3.5 gallon water up 3℉
【Auto on and off 】Reliable submersible aquarium heater. It will stop heating when the water temp reaches to the set temp, please note that the water temp may go up 1℉ more because of the waste heat. When the water temp is cool down to 1℉ less than the set temp, the tank heater will restart heating
【Fully Submerged】The heater tube and the separate sensitive thermometer must be completely submerged under water all the time. Please unplug it and wait it to cool down before you removing the heater or doing water change
【Led Display Controller】Only show Fahrenheit degrees. To set the temp, just press the button over and over until the screen displaying the temp you desired, then stop and wait the digit flashing for 3 times, the setting is done and the led shows the current water temp again
【For long Time Use】Very durable and explosion-proof aquarium heater, can be used for saltwater and freshwater aquariums, service life can be 3 years or more. With low profile black plastic guard, easy to hide in the tank

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