Made of high-quality material, you can buy with confidence. The ice bath thermometer is designed with convenience in mind, with a floating function, which can swing effortlessly on the water This water thermometer has a time timing automatic function, waterproof electronic thermometer Automatic timing function with alarm flashing minimum temperature -20℃, maximum temperature 70℃ This can not only be used for winter swimming, but also for fitness or ice baths after intense exercise