Review on 🌡️ Efficient Temperature Control with Elite Thermostatic Heater by Katrina Wright

This aquarium water heater does heat the water BUT its temperature sensor is 1/2 inch from the top of the unit. If you start with a clean aquarium, it will work for two days, then its sensor will no longer be in the water (evaporation), but in the air above the water! How does it know what temperature the water is? To make it work Right, you have to keep the water up to the top of the tank all the time and refill it every day.