We are using Digi Sense IR Guns for the inside of the truck temperatures for incoming loads.
We have a comparator cup for the calibration of the device and for some reason within a few months all the IR guns are already out of calibration.
These devices are more expensive to calibrate than they are to replace, so we continue to have to buy new ones.
Does anyone have any good recommendations for IR Guns that last longer? or any good recommendations for calibrating these devices?