ProPanel Giant Caliper

ProPanel-HD is a giant precision hand-held measuring tool that is built and used like a caliper to make inside, outside, diagonal, hole-edge, and hole-hole dimensional measurements. It can also be used to compare diagonal measurements for squareness testing of parts.

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ProPanel-HD is a giant digital caliper used to make inside, outside, diagonal, hole-edge, and hole-hole dimensional measurements.

This is a rugged linear measuring tool and is designed to make "on the manufacturing floor" measurements by one or two operators.
It is based on the ProScale Model 590, and is robust enough to span up to 120 inches of measuring range (longer if beam is supported). It has a sliding carriage/jaw assembly that rides on 4 iGlide™ friction bearings to minimize encoder pitch and yaw.  Four removable alignment cylinders are included with the system for easy diagonal measurements. The optional Hole Measuring Kit (contains 2 full steel cones and 1 half cylinder) is available for edge-to-hole and hole-to-hole measurements.

Units with 100" range and more require LTL shipping.
(If you can use a unit with 0-96" range, it can be shipped using UPS/FedEx, which saves lots on shipping costs. Contact factory for shipping quotes on long units.)


  • Jaws are 9 inches tall
  • Battery Operation: 1 CR123 Lithium battery lasts up to 30 months
  • LCD Readout: Low power LCD with Auto Off/On
  • Large, easy-to-read: .50 in (12.7 mm) characters
  • Displays: decimal inches, fractions, millimeters, or centimeters
  • Five Primary Keys: Power, Units, Datum, Plus, Minus
  • Six Secondary Keys: ABS/INC, SEND, and 4 special function keys
  • Programmable Datum: use Datum key for zero or any other value
  • Special Functions: Go/NoGo, Upper/Lower limits, Monitor, Hold
  • Scaling: Programmable Linear scaling factor
  • Lock-Out: Front panel keys and Readout programming can be disabled
  • SPC output: Wireless Data Transmitter ready



Accuracy ± .005in (.13mm) maximum error over measuring range-all models
Resolution .001in  or  .01mm   or   .001cm   or   1/64 in
Repeatability .001in  or  .01mm   or   .001cm   or   1/64 in
Operating Power 1 CR123 Lithium Battery or equivalent
Output  SPC (Digimatic®)
Weight (without packaging)

0-40" system is 5.75 pounds
0-60" system is 7.40 pounds
0-80" system is 9.10 pounds
0-100" system is 10.60 pounds


User Manual Quick Start Manual
User Manual (last updated July 2020) Information Sheet
User Manual
2D Drawing

Overall system features:

Measuring width:

Comparing diagonal measurements:

Measure hole-to-hole distances: 




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