This Genius Allergy Tester Can Tell If Nuts Are Hiding in Your Kid's Food

Place a small sample of food into a single-use capsule and screw on the cap. Then, insert the capsule into the device. After about five minutes, you'll get your answer.

If peanut has been found, the sensor will display with a "Peanut Found" message. If no peanut has been found, a smiley face will appear.

The Peanut Sensor can detect 10 parts per million (ppm) of peanut protein with 99.2 percent accuracy based on third-party testing.