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


ProKit 590


ProKit 590 is an ideal foundation for a 'build-it-yourself" dimensional measuring system.
This system starts with a ProScale Model 590 measuring system with its 4 friction bearing sliding carriage assembly.  Added to the sliding carriage is an 8 inch x 1 inch (200mm x 25mm) hard anodized jaw and a quick grip handle to move the entire assembly. This becomes your moving measuring jaw, or stop.

NOTE: Beginning in December 2016, all scales will be CLEAR Anodized instead of Black.

To complete your dimensional measuring system simply recess the ProKit 590 into a table top, add a fixed stop at one end and start measuring products.  See Below:



  • Battery Operation: 1 CR123 Lithium battery lasts up to 12 months

  • LCD Readout: Low power LCD with Auto Off/On

  • Large, easy-to-read: .75 in (20mm) characters

  • Displays: decimal inches, fractions, millimeters, or centimeters

  • Five Operation Keys: Power, Units, Datum, Plus, Minus

  • Six Function Keys: ABS/INC, Data SEND, and 4 special function keys

  • Programmable Datum: use Datum key for zero or other value

  • Special Functions: Go/NoGo, Upper/Lower limit, Sum, Min, Max, Ave.

  • Scaling: Programmable Linear scaling factor

  • Compensation: Built in Non-Linear and Temperature compensation

  • Accessories: Pre drilled mounting holes in sliding carriage assembly

  • ProRF: Wireless Data Transmitter ready


Product Literature


     As measured at Encoder output, WITHOUT compensation:  ± .010 in (.25mm)
     As measured in user constructed system WITH Compensation Enabled:  Better than  ± .010 in (.25mm)*
Resolution .001in  or  .01mm   or   .001cm   or   1/64 in
Repeatablity .001in  or  .01mm   or   .001cm   or   1/64 in
Display Range ± 999.999in  or  ± 9999.99mm  or ± 999.999cm  or  ± 399 63/64
Power 1 CR123 Lithium Battery or equivalent
Output SPC (Digimatic®)
Custom sizes are available to measure up to 16 feet (4.8m)

* System accuracy will ultimately be influenced by the quality of the measuring system construction (Abbé Error). When sound mechanical design and assembly have been incorporated into your design, and the system is calibrated using the Non-linear Compensation function in the Digital Readout, accuracies stated above will easily be attainable.

      Readout Manual           Model 590 Dimensions        ProKit Dimensions

Purchase ProKit 590

ProKit 590-4

ProKit 590-8

ProKit 590-10

ProKit 590-12

ProKit 590-16
Measurement Range
up to 48 in. (1.2m)
Measurement Range
up to 96 in.  (2.4m)
Measurement Range
up to 120 in.  (3m)
Measurement Range
up to 144 in.  (3.6m)
Measurement Range
up to 190 in.  (4.8m)

$ 1100

$ 1300 $ 1450 $ 1600 $ 1900

Accessories for ProKit 590

Pro-RF SPC Transmitter and

Pro-RF SPC Transmitter Only

Pro-RF Receiver Only




Each ProKit 590 SYSTEM is supplied with:
  • 1 Series II Inductive Measuring Scale
  • 1 Sliding Carriage Assembly
  • 1 Series II Inductive Encoder (4 in cable)
  • 1 General Purpose Enhanced Digital Readout with Linear and Temperature compensation
  • 1 8 x 1 inch (200 x 25mm) moving stop and handle
  • Installation and Operation manuals

ProKit 590 Replacement Parts

Part Description

Part Number Price
SCALE, ProKit 590-4 700-5900-048 $430
SCALE, ProKit 590-8 700-5900-096 $690
SCALE, ProKit 590-10 700-5900-120 $810

SCALE, ProKit 590-12 700-5900-144 $960

SCALE, ProKit 590-16 700-5900-192 $1210

ENCODER, All Models 701-1900-S04 $140

READOUT, All Models 700-1600-236 $260

Moving Stop 100-2909-001 $100

Handle 100-2916-001 $35


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