เครื่องวัดอุณหภูมิ สระว่ายน้ำ Swimming Pool Floating Thermometer for Fahrenheit and Celsius
This thermometer is the perfect and easy way to tell the temperature of the water in your pool hot tub and so on. The thermometer features an easy to read display in both ℉ and ℃ (-20~120℉ & -30~50℃) and comes with a tie off tether string so no worries about it floating away from the edge. Shatter resistant plastic body and tie rope make it easy to find.