....linear digital measuring systems from fractions to 10 microns....


ProScale Model 290 Measuring System

ProScale Model 290 shown with Encoder and Guide Clip*                        End View of Scale profile

ProScale Model 290 uses SERIES II Incremental Inductive measurement technology.
This system is an affordable choice for most common machinery and measuring applications.  The encoder speed
of 120 ips makes it a preferred choice (over ProScale 250) for applications where speed may be issue.
This system is designed to be used in a 'Scale Stationary, Encoder Moving' configuration.

(Consider ProScale Model 590 or ProKit 590 for building dimensional measuring systems).

* The Guide Clip is used to capture the ENCODER and move it across the SCALE. 


  • No Gap to Set: All Encoders are "captive" on the Scale so you never need to set the Encoder gap.

  • Battery or 12-24 VDC Operation: Readouts are available that operate on battery, or 12-24 VDC.

  • High Noise Immunity: Inductive technology reduces the likelihood of motor electrical noise, magnetic fields, power transients and ESD from affecting the measurement.

  • Scalability: The M290 supports multiple Encoders and Readouts operating simultaneously on the same Scale.

  • Wireless Data: Systems are available with 2 way ProRF-SPC or Encoder wireless data transmitters.

  • Encoder Speed: up to 120 inches per second.

  • RoHS compliant Lead Free Product

  • LIFETIME limited warranty.  


  • Video


Model Measurement Range Accuracy (measured at the Encoder output)
Model 290-2 up to 24 inches   (600mm) better than: .005in  ( .12mm)
Model 290-5 up to 60 inches   (1500mm) better than: .008in  ( .20mm)
Model 290-8 up to 96 inches   (2400mm) better than: .008in  ( .20mm)
Model 290-10 up to 120 inches   (3m) better than: .008in  ( .20mm)
Model 290-15 up to 180 inches   (4.5m) better than: .008in  ( .20mm)
Model 290-20 up to 240 inches   (6m) better than: .008in  ( .20mm)
Model 290-24 up to 290 inches   (7.3m) better than: .008in  ( .20mm)
Custom sizes are available to measure up to 24 feet (7.3m)     DIMENSIONS

Purchase ProScale Model 290
Model  Measuring Range System Price
(Scale + Encoder)


Model 290-2    24 in  (600mm) $ 200
Model 290-5 60 in  (1.5m) $ 300
Model 290-8 96 in   (2.4m) $ 400
Model 290-10 120 in   (3.0m) $ 600
Model 290-15 180 in   (4.5m) $ 800
Model 290-20 240 in   (6.0m) $ 1000
Model 290-24 290 in   (7.3m) $ 1200

Prices above include the SCALE and ENCODER only.
Additional price for selected Readout/Encoder choices are shown in the drop down selection box.

Digital Readout choices

  Basic LCD

  General Purpose LCD

 In-Panel LCD

In-Panel LED

 2 Input In-Panel LCD

VDRO Software

Accessories for ProScale Model 290

SPC RF Transmitter & Receiver


ENCODER RF Transmitter/Receiver


AIU D-A Converter



Each ProScale Model 290 System Includes:
  • 1 Inductive Measuring Scale -  Measuring Range + 4 inches = Physical length
  • 1 Inductive Encoder (with selected cable length)
  • 1 Digital Readout (if selected)
  • 1 Pkg. Mounting Hardware containing:
    • Mounting Screws (8-32 x 3/8 flat head Phillips)
    • 1 Guide Clip (used to move the encoder along the scale)
  • Quick Start Installation and Operation Manuals
E-Mail Request for a Custom System

 ProScale Model 290 Replacement Parts





 System Manuals

All LCDs Manual

LED Manual

2 Input Manual

VDRO Manual


Installation (All)
E-Mail for Assistance with Replacement Parts

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