I have Been using this product for a couple of years. The temperature reads high all the time--seems to be a percentage inaccuracy since the higher the temperature the worse the error. and has worsened over time. e.g. per my Weather Channel Wireless Temp-Humidity, today temperature was 72F the Honeywell read 84F. There is no uncertainty it was not that warm outside. I would like to know if there is a calibration for it or should I just throw it away.