Hitop 100W Mini Adjustable Aquarium Heater: Digital Fish Tank Heater With Protective Cover And Controller For 5-30Gallon

How to use this aquarium heater？ 1、Plug in the power supply, the power indicator is on, and the number displays the current temperature (When it is detected that the current temperature is lower than the set temperature, the heater will start working and the heating indicator is on; When the current temperature is higher than the set temperature, the heating indicator will be off). 2、 Temperature setting: simply press the ‘SET’ button, and the number starts to flash, indicating that it has entered the temperature setting state. The set temperature is cycled at 69-95℉. When it reaches the set temperature you want, just stop pressing, the number stops flashing and turn to show the current temperature, it means the temperature-setting is completed. The final flashing number is what you set(Please note if you want to check the temp you set, you need to press the button again, it will show you by flashing). And the heater will remember what you set, you don’t need to set it again if the power cut off and connect again.