Healthometer

A healthometer appears in the episode Raphael Versus the Volcano. It has been invented by, and can detect someone's health with a finger scan.

When pulls his finger into the healthometer, it indicates he's soon going to die, and he decides to spend what he thinks is the last time of his life as the Green Defender, saving people in danger. When Raphael has left, Donatello discovers a malfunction in the healthometer.

When Raphael returns from his adventures as Green Defender, he destroys the healthometer.

Readings

 * Readings on the Healthometer:
 * A-1 Specimen
 * Physically Fit
 * Not So Hot
 * Sick as a Dog
 * Adios Amigo