Solar Powered Display -- Comes equipped with an LCD Digital display powered completely by the sun's rays that easily shows pool temperature when you hit the temperature button. Comes with a tether to prevent floating away. Accurate Readout -- Tube reaches 5 below the waters surface for precise temperature reading. Temperature button allows to switch between Fahrenheit & Celsius. Features wide temperature detection range -20 to 120 degrees F / -30 to 50 degrees C. Easy to Use -- Digital pool thermometer is with high-precision temperature sensor which ensures an accurate temperature readout.It is a convenient way to monitor the temperature of bath water and outdoor pool. Safe and Durable Material -- The swimming pool thermometer is made of high-quality PP material,which is durable, suitable for both indoor and outdoor use.The ties rope prevent the thermometer from floating away. Widely Used -- Floating thermometer is your best choice promote the fun of swimming.Ideal for family pools, spas, pool spa, hot tubs, aquariums and fish ponds.