Ultra-long Battery Life: The baby bath thermometer can be lighted up 20,000 times, no need to replace the battery, and the waterproof level is IPX7, so you don't have to worry about water entering. 3 Color Warning Water Thermometer: When the water temperature is 0-33, the screen will display blue water droplets (indicating low temperature), when the water temperature is 34-38, the water droplets will turn green (indicating normal temperature), when the water temperature is 39-99, the water droplets will turn red (indicating high temperature). Intelligent Temperature Sensing: The bathing thermometer adopts LED digital screen, touches to light up, and the upgraded temperature sensor has more accurate real-time temperature. Put it into the bath water, it will display the temperature within 1 second, take it out of the water to dry, it will automatically turn off after about 5 seconds. Comfortable Bathing Environment: This bath thermometer made of BPA-free safe materials is very suitable for babies, unlike adults, unsuitable water temperature and materials will make babies feel uncomfortable and cry easily, this water thermometer keeps baby comfy at the optimum water temperature. Ideal Shower Gift: The cute astronaut bath thermometer also can measure the room temperature and can be used as a bath plaything, which can divert the baby's attention and make the baby quiet.