Adndmc Titanium Aquarium Heater, Submersible Fish Tank Water Heater with Intelligent LED Temperature Display, Over-Temperature Protection, and External Temperature Controller, Waterproof

• 200W aquarium heater can be used for 21 to 50 gallons aquariums; Made with highly durable titanium tubing with an extremely waterproof IP68 rating; It can be used in freshwater, etc.
• The intelligent IC chip with dual temperature sensing enables automatic temperature control via the dual sensing probes on top of the heater, which is safer for the fish.
• Intuitive display for easy, more accurate temperature readings; When the temperature is below or within the set range, a red light or a blue light will be displayed.
• The heater includes instantaneous cut-off when water drops below a certain level; The heater bar also has a built-in over-dry burn protection device.
• The design of the external regulator makes it easier to use; The long 5.42 ft. cable allows it to work well; The 2 suction cups included allow the heating rod to be sucked onto the tank wall.