Differing temp. between probe/SensorGW?

Is it possible, that the temperature in the sensore Gateway is more precise then the probe? Our 4 devices differe by 1degree, when they have nearly the same Location.

As per user manual, it depends on air circulation where the Sensorgateway temperature probe is exposed and the others are in an enclosure

If the temperature is differing here on a normal desk without direct sun or a strong wind exposure, would you suppose, that the Sensorgateway is more precise? Or do I have to calibrate your sensores with anotoher gauged device?

This will depend on your baseline temperature (if ever there's an established one). But all in all, a significant factor as previously stated is that the internal is exposed while the others are enclosed.