The DINGMO Aquarium Heater is a small, durable fish tank heater that is perfect for use in freshwater and saltwater environments. With a detachable Type-C cable, it is easy to set up and store. The LED digital display shows the current temperature, and the auto shutoff feature protects your fish from overheating. The heater is made with explosion-proof carbon and is double-sealed to resist corrosion, making it safe for use in both freshwater and saltwater environments.