The Aquascape Submersible Pond Thermometer is ideal for monitoring pond temperature throughout the year. Water temperature plays a huge role in maintaining your pond properly and knowing the temperature of your pond water will allow you to adjust the addition of water treatments to best suit the season. Fish feeding rates and amounts should also vary throughout the year. The Submersible Pond Thermometer is a great tool that can be used to help make these types of decisions by assessing temperatures between -20 and 120 degrees Fahrenheit. An included nylon string allows the thermometer to be anchored to an easily accessible location. Aquascape is passionate about the products we produce, providing unique products, designs, and features that stand above the competition.