Features 1、Professional design, its bright colors and easy to read data can make it easy to read even in water, helping you to grasp the water temperature. 2、Wide test range, the test range of the white thermometer is 0~40℃ (40~100℉), and the test range of the blue thermometer is ‑10~50℃ (10~120℉). 3、Small size, it is lightweight, portable, waterproof and durable, has a long service life, and can be used to measure temperature in a variety of situations. 4、It is an ideal and convenient method for judging the temperature of water in swimming pools, hot tubs, etc., and can be used for water temperature testing in swimming pools, saunas, spas, and hot springs. 5、Multifunctional design, it is easy to read at both ℉ and ℃, and has a tether, so there is no need to worry about it drifting away to ensure the normal progress of the test. Specifications Item Type: Thermometer White Thermometer Size: Approx. 22.5x7cm / 8.9x2.8in Blue Thermometer Size: Approx. 24.5x4cm / 9.6x1.6in White Thermometer Test Range: 0~40℃ / 40~100℉ Weight: Approx. 170g / 6oz Blue Thermometer Test Range: -10~50℃ / 10~120℉ Material: Kerosene + Plastic Uses: It can be used to test the water temperature of swimming pools, saunas, spas and hot springs. Package List 1 x White Thermometer 1 x Blue Thermometer