【Silent Temperature Warning】This bath thermometer reminds you of the water temperature range with 3-color warning light, silent design, no alarm sound to scare your baby. If the light color is blue/red, it means the water temperature in the bathtub is too cold/too hot for your baby. You can check the warning light color to know the real-time water temperature and adjust it. 【Color Changing】When the water temperature is lower than 35℃, the warning light will turn blue; when the water temperature is higher than 39℃, the warning light will turn red; when the water temperature is between 35℃ and 39℃, the warning light will turn green. Let you know the temperature change in time to ensure the safety of the water temperature, so that the baby always feels comfortable. 【Bath Safety】This bath thermometer is made of green and healthy material, the thickened material is drop-resistant and durable, the surface is smooth and burr-free, so your baby's skin will not be hurt. Make bath time