hygger Mini Aquarium Submersible Heater🍀🍁🐠 Use an external controller to set the temperature instead of immersing your hands in water to rotate the dial. Never wet your hands or contaminate your tank. Variable temperature settings range: 59-93℉. The controller shows 2 readings – the current temperature and the set temperature – very easy to switch by pressing the SET button and you save an extra thermometer for current temperature measuring #hygger #hyggeraquarium #aquariumfishlove #aquariumt