DUAL TEMP DISPLAYS: LED display on the middle of the controller front side, Current Temp and Set Temp. If your heater is working properly, the red light will be constant on. When the temperature is reached 93 (34), it will stop work, the blue light will be constant on. When the heater exposed to air and is not fully submerged, then display E1 fault
EASY INSTALLATION: Easy and quick installation, submersible fish tank heater, vertical or horizontal placement using attached adjustable hanging rack and 2 suction cups.
NOTE: Please make sure that the heater is completely submerged in the water before turning on the power, and install it near the water flowing area to prevent uneven heating
WIDE APPLICATION: Suitable for freshwater and saltwater aquariums.
NOTE: Before you clean the aquarium or change water, please cut off the heater power, after 10 minute cooling then take out the heater. provide 12 Month Warranty and 24 Hour Professional After-sales Service. Please don't hesitate to contact us to get help