1.Environmental protection ABS material: solar powered pool thermometer is made of highquality ABS material, which is durable and antioxidant and has a long life, suitable for indoor and outdoor use. Besides, it works perfectly in the long term and is not easy to crack. Just use it with ease! 2.Accurate Readings: The pool thermometer features a clear LCD display with a 12/24hour display option and delivers accurate readings in Fahrenheit and Celsius. Pool sensor temperature detection range: 40°C to 70°C (40°F to 158°F), temperature detection range of interior main frame: 9.9°C to 50°C (14.2°F to 122°F), stores MIN and MAX temperature values. 3.Easy to use and read: Place the floating pool thermometer directly in the water and wait 12 minutes to read the degree. The thermometer displays the temperature in Fahrenheit and Celsius, and the data is easy to read. And our water thermometer comes with a convenient drawstring that prevents it from floating away and prevents sinking or losing. 4.Wireless Connection: Wireless Range: 433MHz/100M. It has a oneway connection. You can check the temperature readings with the receiver without leaving the room. Temperature error within ±1°C, transmission range 60m. The water thermometer (cone) floats on the surface of the water and measures the water temperature 100 m above the water and 60 m below.