Length Counter Sensor Wheel Encoder

Dual Direction Pulse Counting

Model CHK-50/CHK-70/CHK-80/CHK-90, min counting 0.001/0.01/0.1m. Single wheeled & Dual wheeled.

Work with the pulse counter or controller CHCN48/CNCMF402/CHCMF802. Widely used in printing machines, textile machinery, plastic & rubber machinery, wood cutting machinery, cable equipment, pharmaceutical machinery and so on. 



CHK series length counter sensor wheel encoder is consists of length-measured drive gear, a length-measured signal receiving, and a signal output circuit. By means of the reverse rolling friction between the drive gear and the measured objects (such as textile or plastic tape) or the reverse rolling between the drive gear and the main shaft of the machine producing the measured objects. the actual measured length unit signal is sent to the counter by combing the internal gear ratio of the sensor with an optical signal.

  • Good reliability, long life, anti-jamming performance.
  • Stainless steel shaft has higher stability and protection.
  • The metal shell is more solid and anti-impact.
  • Bearing load heavy, anti-oil and water.
  • Applicability to a wide variety of mechanical and industrial control.

Main Features

  • Application: Textile machine, plastic machine, printing, packing, pharmaceutical machinery
  • Theory: Optical sensor
  • Material: Stainless steel
  • Work mode: Forward and reverse measurement
  • Accuracy: 0.001/0.01/0.1/1.0 meter
  • 10-30V DC / 5V DC power supply
  • 2m cable length

Your reliable encoder supplier

Small size 

     Less weight

         Long working life 

            Convenient installation 

wheel encoder sensor with counter application


Model no. Length unit(m) Feature
CHK-50-1 0.01/0.1/1 4 counting signals for choice

Bi-direction counting

CHK-80-4 0.001
CHK-70-4 0.01 1 counting signals for choice

Bi-direction counting

CHK-50 length counter sensor size
CHK-80 wheeled length sensor-size
CHK-90 length counter sensor size

DC 10-30v

Net Weight: about 400g

Gross Weight: 500g

Cable color Red Yellow Green White Blue Black
CHK-50-1 DC 12V 0.01m 0.01m 0.1m 1m GND
CHK-80-4 DC 12V 0.1/0.001m 0.1/0.001m GND

Warranty: 12 months

For support, please visit support center or email us at

1 x CHK Length Counter Sensor

​​​1 x Manual