is a family of industrial-grade optical incremental encoders, available in two different models. They have the same mechanical and electrical features, but differ in performance and price.
The following features are common among both models:
LED illumination for reliability
Push-pull phototransistors for signal stability
Optional zero index
Combination synchro/face mount
Medium-duty housing, or optional environmentally sealed housing
Sealed ABEC Class 7 bearings for protection against contaminants
Precise chrome-on-glass disc