Capteur Heidenhain - Specto

Incremental linear encoders Heindenhain

Specto series

Incremental probes with a high precision and long mechanical travel



Length gauges from Heidenhain offer high accuracy over long measuring ranges. They have a wide range of application in production metrology, in multipoint inspection stations, measuring equipments monitoring and as position measuring devices.

The large measuring range enables to measure lot of different part in 1 measuring setup and avoid changing frequently measuring setups.


Thanks to their small dimensions, the Heindenhain Specto sensors are well adapted to the multi-dimensionnal measurement and to the control setups.

The ST1288 and ST 3088 are actuated by spring and their tip are out in a time off position

With the "pneumatic" probes ST 1287 and ST 3087, the probe tip is kept in in a time off position thank to the integrated spring. Injection of pressured air causes an exit of the probe tip up to the measurement position.


SEPCTO linear encoders are compatible with the Metro display units as well as the M-Bus conditioners.



ST1288 and ST3088 are on stock




Main characteristics :

  • Incremental linear encoder sensor
  • Measuring range 12 and 30 mm
  • Resolution up to 0.1 micron
  • Precision ± 1µm
  • Signal : 1Vpp or 11µA or TTL
  • Spring push or pneumatic actuated
  • Standard body diameter(8h6)
  • Interchangeable probe tip M 2.5 mm
Capteur Heidenhain - Specto








Name ST 1278 ST 3078 ST 1277 ST 3077
Measurement range (mm) 12 30 12 30
Resolution for the 1Vpp ouput versions (µm) 0.1 0.1 0.1 0.1
Resolution for the 11µA ouput versions (µm) 0.1 0.1 0.1 0.1
Resolution for the TTL ouput versions (µm) 0.5 0.5 0.5 0.5
Precision (µm) ±1 ±1 ±1 ±1
Probe tip actuated by: Spring Spring Air (pneumatic) Air (pneumatic)
IP Rate IP64 IP64 IP64 IP64
Reference mark 1 1 1 1




click on the picture:

Item references


Item Reference (1Vpp output)
ST 1288 (12 mm stroke) 84112-R
ST 3088 (30 mm stroke)84130



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