This aquarium heater is fitted with stainless steel tube inside and engineering plastic tube outside to protect against damage. No glass components. Equipped with dry-fire protection device.
Temperature range of this tank heater is from 68℉-88℉, adjustable via a simple knob on the top. +/- 1 ℉accuracy. The light will go on while it’s working and off while not.
Can be placed vertically or horizontally. BUT NOT TILTED. It will not operate if the bottom is higher than the top. Must be FULLY submerged.
Can be used both in freshwater and saltwater. Will not rust.