The Most Safety Operation

Instructions
How to adjust temperature:
There is a regulator connect with power cord, just press the button after heater has been installed,
and you can will see the LED display shows °F,
press the button until you see the display shows your expecting temperature (display 59~93℉ in cycle by),
and then leave it for heating up.
For example:
Expecting temperature is : 80℉ Heater display shows: 70℉ Then, Press the regulator 10 times,
then you will see the display shows from 70 to 80°F.
When you see the display shows 80°F,
then leave it for heating.

Details:
Model | FS-28 |
Power | 50W |
Color | Black |
Suitable tank size | 1-10 gallon tank |