Recalibrate temp sensor in keypad?

[Sendero]

I have one keypad that regularly shows a much higher temp (8 degrees on avg) than the other keypads and is also higher than a digital thermometer in the same room. Is there a way to recalibrate the temp sensor in the keypad?

 

[rfdesq]

See page three of this manual http://www.elkproducts.com/pdf/M1KP_LCD_Keypad.pdf.