RK series is a high performance , low cost , two-channel optical incremental encoder module. It consists of a highly collimated light source and a detector IC enclosed in a small C-shaped plastic package, matched with a codewheel or codestrip, it provides information of rotary or linear position. 

RK series also has linear (LPI) options：20, 45, 90, 150, 180, 300, 360.

RK series have lots of CPR options based on optical radius(ROP)=11mm, Standard CPRs：100, 200, 360, 600.

Features

· Photodetector Array

· -20⁰C— +85⁰C Operating Temperature

· Resolution Up to 600 CP

· C-Shape Structure，Easy to Mount

· TTL Compatible

· Single 5V Supply

More Details:

RK1 Data Sheet.pdf