Inground or Above Floor Swimming Pool, Spa, Sizzling Bath, Tub 6″ Thermometer w/ Twine, White Nice for checking for water temperature readings in pool, spa, Sizzling Bath, Tub tubs or puppy baths. This thermometer with Twine is sinkable and is non-floating. It options a very easy to learn twin temperature studying space in fahrenheit and celcius readings. Dimension: 6″ Temp. Vary: zero-a hundred and twenty F Temp. Vary: -10-50 C Word: To make the thermometer sink there should be no air within the thermometer. Cling thermometer the wrong way up underneath water and make allowance all air bubbles to expel out of the opening thats at the backside of the thermometer.