High Precision: The pool thermometer uses advanced sensors with fast response speed and high measurement accuracy. The temperature difference range is ± 2°C. Easy to Read: The large floating screen of the pool thermometer enables data such as temperature and humidity to be clearly displayed at any brightness and any angle. Practical Design: The thoughtful design of the digital pool thermometer, such as switching the temperature unit to °C or °F, low battery indicator. Wide Application: The pool thermometer is not only ideal for swimming pools, but also for hot tubs, SPAs, fish tanks, ponds, aquariums, etc. It can guide you how to use pool equipment to adjust the temperature and keep the water in your pool and hot tub at a comfortable level, thus saving you some energy costs.