Make sure this fits by entering your model number. 🐠DaToo Aquarium Thermometer With Alarm -- It is very important to keep our aquarium water temperature close to the temperature of the fish's natural habitat at all times. But how to achieve it? A perfect aquarium thermometer is essential. DaToo Aquarium Thermometer, accurate inside/outside tank temperature, high/low temperature alarm function, sturdy and durable, large-screen display, easily help you achieve the perfect water temperature like a fish's natural habitat. 🐠Accurate Inside/Outside Tank Temperature -- DaToo aquarium thermometer can accurately measure the temperature inside and outside the fish tank. (Accuracy to 0.1℉). When the screen displays "In", the temperature is the temperature outside the fish tank (Measured by thermometer body). When the screen displays "Out", the temperature is the temperature in the fish tank (Measured by temperature probe). Very Convenient!