The only single use, wearable Bluetooth thermometer that continuously monitors body temperature and provides convenient alerts to give parent's peace of mind and their sick children the rest they need to get better. A soft comfortable patch is placed under the arm and continuously senses, records and transmits temperature information using Bluetooth technology to a compatible smart device. This allows parents to monitor their sick child from the next room via the Tempera app on a device up to 40-feet away, every 10 seconds for 24-hours. Alerts will let a parent know when a child's temperature is higher than desired. Parents may conveniently monitor multiple thermometers simultaneously, and also email temperature data to healthcare professionals or family members with one touch.