Review on iHealth PT3 No-Touch Forehead Thermometer: Digital Infrared Touchless Thermometer with Ultra-Sensitive Sensors for Adults, Kids, and Babies. by Ada Fedorowicz ᠌

It seems that it shows the temperature by the stars. You measure 5 times in a row, each time a different value. The difference is from 36 to 37.5. I measured exactly according to the instructions, changed the batteries, wiped the sensors. My use of this device ended when I measured the temperature of the child, showed 37.2 plus or minus, up to 37.5, but the condition of the child shows that it is higher. Measured with an ordinary electronic one, it turned out to be 38.5. In the end, he threw it out. The point is in the device if you cannot trust its readings, and a slight angle or distance, or sweat on the forehead or other conditions, can change the readings both up and down. Not satisfied with the purchase. Money thrown away.