Thermometer pill
Monitors core body temperature continuously as it travels through the digestive system. While inside the gastrointestinal tract, the internal crystal sensor vibrates at a frequency relative to the temperature of the substance (body) surrounding it, producing a magnetic flux. The sensor wirelessly transmits the core body temperature signal harmlessly through the body to the CorTemp™ Ambulatory Data Recorder worn on the outside of the body. Designed for human use only. LINK
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