Yes, the anemometer can be calibrated for all parameters. The instructions for that are included in the user manual. Some parameters, like barometric pressure, are pretty easy to calibrate, you just use a reliable online weather service that reports atmospheric pressure for your location. Temperature calibration will require you to have an accurate thermometer. Calibrating wind speed is more complicated, most of us don’t have access to a wind tunnel. Unless you have the equipment needed to calibrate wind speed, we recommend not changing the factory calibration for wind speed on your anemometer.