Bioscape Tropic Aquarium Heater 100wIncludes Bonus ThermometerFully Automatic and adjustable aquarium heater.Water temperature is consistent as heat is evenly distributed over the heater element.Simple Setting and easy to use.Automatically maintains temperature selected throughout the tankReliable and sturdily builtEasy Set Temperature DialOn/Off indicator lightTotally submersibleHeat resistance glassEnergy SavingAccurate TemperatureFast Heating