MIT develops tiny ingestible sensor for continuous core temperature monitoring

A new ingestible thermometer developed by researchers at MIT promises to overcome the shortcomings of conventional temperature‑measuring devices. Oral and forehead thermometers often fail to reflect a person’s true core body temperature, while the few ingestible sensors currently available are bulky, difficult to swallow, and can obstruct the gastrointestinal tract. The MIT team has engineered a compact sensor that measures only six by four millimetres and can transmit continuous temperature readings in real time.

The miniature device incorporates a low‑power wireless transmitter and a miniature battery that allows it to remain in the body for extended periods without causing discomfort or blockage. By continuously relaying temperature data to a nearby receiver, the sensor provides clinicians and patients with an accurate, real‑time view of core body temperature that is not subject to the environmental or placement errors that plague oral or forehead thermometers. The small form factor also reduces the risk of gastrointestinal complications that have limited the adoption of larger ingestible sensors.

If the technology proves reliable in clinical trials, it could transform patient monitoring in hospitals, long‑term care facilities, and even home settings, offering a safe, accurate, and unobtrusive method for tracking core temperature. The development underscores MIT’s ongoing work in biomedical sensing and could pave the way for a new generation of ingestible health monitors.