Large Easy Read Thermometer for Pool Spa Hot Tub Bath F/ C display - White Large Easy Read Pool Spa Hot Tub Bath Thermometer This thermometer provides an accurate, Jumbo pool water temperature reading in pool, spa, hot tubs, bath tubs. Shatter resistant plastic body and tie rope makes it easy to find in the water. Temperature Range: 0F-120 F/ -20C-50 C. Color: White Size: 10 3/8" long, 3" wide.