Kidz-Med Scald Safe Kidz-Med Scald Safe ScaldSafe Hot Water Bath Tub Thermometer Temperature The Kidz-Med ScaldSafe ensures that your baby s bath is safe. By simply dropping the reusable ScaldSafe disc into water the disc color will change indicating whether the water is too hot or just right. It is a wonderful safety device for any parent or health providers with diabetic patients or patients with other disorders that may result in diminished temperature sensation.