The thermometer is suitable for measuring the temperature of baby's room and bath. For baby, the optimal room temperature is approximately 18 degrees while the optimal temperature for baby's bath is at body temperature, between 36.5 and 38 degrees. Designed in the iconic Tommee Tippee star Fast temperature reading LED warning light when bath is too hot Easy to read LCD screen Floats in water and certified as a bath toy Temperature given in Fahrenheit or Celsius