["Baby bath thermometer Color LED digital displayColorful changing atmosphere lights attract newborn babies perception of color changes. The appropriate temperature number for bathing is green and if the temperature is too high the number will display red providing clear guidance.bathtub thermometer." Bath thermometer baby safety indicating an appropriate and safe bathing temperature.Touch display automatic shutdown Easy to use in baby tub. High sensitivity sensor fast and accurate alternating reaction speed between hot and cold water. Built in button battery no need to replace battery low power consumption long battery life. Ultrasonic sealing good waterproof performance expected to be used for 1-2 years. When the water temperature reaches the red alert area there will be a beep sound.]