Aqua Scale a 3-in-1 Infant bathtub, digital scale and water thermometer in one. Monitoring weight gain is essential in determining if your baby is growing and thriving. With Aqua Scale you can easily weigh your baby between doctor visits in soothing warm water. With just the touch of a button, you will know the exact weight of baby accurate to the gram and water temperature. Aqua Scale has a removable insert to keep babies up to 6 months securely positioned in the tub. After 6 months, remove the insert and Aqua Scale converts to a toddler tub accommodating baby up to 2 years (15 kg).