Our floating thermometers for Ice Bath are an perfect tool for instant and accurate ice bath timing. Designed to float on water, they have a temperature range of -20?70? (-4?158?) and an HD display. Their durable build ensures extended use time. Specification:Product name: thermometer for ice waterColor: WhiteShell material: ABSTemperature range: -35?70? (-31?158?)Waterproof level: IPX6Product size: diameter about 44mm/1.73 inches, height about 30mm/1.18 inchesPacking List:1 x thermometer for ice water1 x ManualNote:Due to different lighting and screen settings, the item color may be slightly different from the picture.Due to different manual measurements, please allow a 1-2cm difference in size.