AquaMiracle Submersible Aquarium Heater with LED Digital Temp Display, 25W/50W/100W/200W/300W/500W Fish Tank Heater, Dry-Run & Over-Temp Protection for Freshwater Saltwater Aquariums

ACCURATE TEMPERATURE - Thanks to the intelligent inverter technology, with the in-built chips the thermostat keeps the aquarium heater at a constant temperature at an accuracy of 1F, much more accurate than the traditional knob-controlled fish heaters. The thermostat shows 2 readings – the current temperature and the set temperature – very easy to operate.

DRY RUN / OVERHEATING PROTECTION - Full consideration of safety. With the multiple protections, the fish tank heater will stop working when the water level is lower than the minimum water level (DRY RUN PROTECTION) or when the water temperature exceeds 97F (OVERHEATING PROTECTION). You are free from “cooking fish”!

MEMORY FUNCTION - The last setting is stored in the chips of the thermostat. In case of a power cut, when the power recovers, the turtle tank heater will follow the last setting.

SAFE & RELIABLE DESIGN - Our aquarium water heater features a protective housing that evenly disperses warmth, preventing glass damage and avoiding the risk of burns to your fish from the heater's external heat.

MULTIPLE USES - This fish heater can be used for both fresh and marine water. It can be not only used as an aquarium heater, but can also work a turtle heater, pet fountain heater, and plant seedling heater.