A thermometer makes it easy to monitor your hot tub’s water temperature during heating. For accurate measurements, the water should be stirred during heating, with a Kirami mixing paddle, for example. During bathing, a thermometer also allows you to easily see when you should add some more firewood to the heater. The duck thermometer offers both fun and functionality; delighting bathers and providing accurate water temperature measurements. The built-in string allows you to anchor the thermometer if you do not want it floating freely.