Forehead Thermometer - Digital Medical Thermometer for Fever -Ear Thermometer -Instant Accurate Reading Temporal Thermometer - for Baby,Adult by Famidoc

Q: How do you calibrate this device?

Calibrated 3 ways: compared with my MD’s forehead thermometer with multiple samples. Used an electronic pen thermometer orally with multiple samples. Used water heated to 98 degrees (using Thermopen) and dip Infrared tip into the water. All measurements were at least 1.2 degrees lower. Also beeper sound never worked. Think I was sent a returned unit

Q: Can you change between F and C?

Yes, temperature reading changes between F and C. The sheet (user manual) enclosed with the product tells you how. By holding the measure button, the unit C and F will switch automatically, release the button when selected unit appears. (This is found under “Installation and instruction”, item 3).

Q: Thermometer did not come with ear attachment. How can I purchase it?

Just pull off the forehead attachment :) it’s behind it

Q: how do you set it to mute?

I am not aware of a feature that let's you mute the sound; however, it is a very low tone that I sometimes have trouble hearing it so I doubt the sound would be very bothersome to you. In addition to being a soft tone, it is very quick tone so again I can't imagine that it would be very bothersome.