Profile: Servo-Tek Products Co., Inc. provides rotary incremental encoders tachometers and other position/velocity sensors. Our products include rotary encoders, incremental encoders, encoders, optical encoders, optical shaft encoders, easy mount encoders, low cost encoders, and hollow shaft encoders. We also offer incremental rotary shaft encoders, panel tachometers, digital tachometers, digital panel meters, and low cost encoders.