Del-Tron
Del-Tron LS3-2 Linear Stage Reli-a-Flex Motor Mount Precision Motion
This Fieldpiece device has a very wide measurement range.
Del-Tron Motorized Precision Linear Stage
A nice detail is the 1 inch by 2 inches by 1 inch footprint, minimal and efficient.
Del-Tron LS3-12 Motorized Linear Stage Precision Positioning
This piece from AAIWA fits into standard setups without hassle.
Del-Tron 451 Linear Positioning Stage&Micrometer as in photos, sn:9196, DHL
A nice touch with the ULTRA2 is the dust cover that keeps debris out of the internals.