Z Resolution

Z Resolution gives an indication of the smallest detectable height difference at each point, or how accurately height on a target can be measured. Variability of height measurements at any given moment, in each individual 3D point, with the target at a fixed position, limits Z resolution. This variability is caused by camera and sensor electronics.

Like X resolution, Z resolution is better closer to the sensor. This is reflected in the Gocator datasheets as the two numbers quoted for Z resolution.