With rope-- Each float pool thermometer comes with a 20 inch rope. You can tie it to the side of the pool or to your arm for easy viewing. Precise, clear and easy to read-- Precise temperature can be read in 10 seconds when placed in water. Maximum temperature - 120 degrees Fahrenheit. The display has both Fahrenheit and Celsius readings, and the numbers are black and large for easy reading. Hard and durable-- The pond thermometer is made of high quality PP and ABS plastic, which is solid, durable and shatterproof, so it can be used for many years without breaking. Multi-scenario apply-- Temperature reading range:20 to 120F / -10 to 50C. Widely used in all outdoor and indoor swimming pools, spas, hot tubs, aquariums, baby pools, fish ponds, etc. Our Promise-- After receiving the goods if the product has any problems or lack of any accessories, please contact us immediately, we will be the first time to solve your problem until you are satisfied!