For SantaMedical model # RY 210 and RY 220 (Non-Contact Thermometers)

Press the PROG SETTING button for 3 seconds

The screen displays F1 (Function 1)

Press the - button for Celcius, + button for Fahrenheit

Press PROG SETTING button to confirm.

For SantaMedical model # RY 230 (Non-Contact Thermometers)

Press center C/F button to switch between the modes.

For Gurin Model # TS 110 (Infrared Ear Thermometer)

Even though the screen shows C/F on power up, only Fahrenheit is programmed for this unit.

We apologize for this convenience.

Please contact us if you have any questions or this procedure is not working for you.

Click on + New in the upper right corner to send us a support ticket email so we can help you out.

For quicker resolution, please let us know the company you bought it from (Amazon, Groupon...) 

the order number, model number and your current address.

Amazon order number can be found by:

- Logging into your account

- Click on Your Account

- Click on Your Orders

- Search for the product and find the corresponding Order Number (eg. 123-1234567-1234567)



Customer Service