MAG-ic Probe BLE Thickness Gauge

MAG-ic Probe BLE Thickness Gauge

MAG-ic Probe BLE Thickness Gauge

Item # 4096
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MAG-ic Probe BLE Thickness Gauge

About This Item

For use with computer or smartphone
MAG-ic Probe is an electronic thickness gauge for accurately measuring the thickness of instrument tops, sides and backs. This new MAG-ic Probe BLE is the smallest, most versatile version yet.

Works where a traditional caliper can't!
Unlike a traditional mechanical caliper, MAG-ic Probe's electronically calibrated magnet-based design works for assembled instruments, too—it's easy to measure prized instruments and replicate their specs in your own builds.

The MAG-ic Probe measures any point on an instrument, by inserting the steel ball bearing through an f-hole or soundhole. As you move the magnet on the outside, the ball follows inside, providing the thickness reading in both mils (1/1000th inch) and millimeters. Of course, it's great for measuring flat plates of tonewood, too.

  • Compact: all the electronics are inside the small handheld probe
  • USB-powered (battery pack supplied, or use your computer)
  • Downloadable software for your computer
  • Smartphone app for mobile use
  • MAG-ic Probe BLE handheld unit
  • Ball magnet for guitars and plates: 1/2" (13mm)
  • Cylinder magnet for violin/mandolin f-holes: 1/4" (6.35mm)
  • USB cable
  • Battery Pack for mobile use
  • Free MAG-ic Probe Lite software (downloadable)

Free MAG-ic Probe Lite Software allows you to upload a picture of the instrument or object you are measuring on your computer and record each measurement you make to that picture.

Optional MAG-ic Probe PRO Software transforms your completed measurements into a full-color contour map to instantly visualize your thickness planes. Available directly from MAG-ic Probe.

Measure other materials, too
MAG-ic Probe BLE will read any non-ferromagnetic material up to 15mm, including Plastics, Aluminum, Copper and composite sheet materials.

WARNING: Cancer and Reproductive Harm -

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Great for the toptuning


Verified Buyer

It is realy helpfull to have control on the top thicknes on different areas after the box is closed, before the cellulosa goes on. Here I also can se the thicknes of the cellulosa I put on.
Ringströms Gitarrverkstad Sweden


Great service!


Verified Buyer

After the gauge arrived it was unfortunately not working. I immediately got a new one without discussion. The new gauge works perfectly.


StewMac PDF Catalog, page 43 See MAG-ic Probe BLE Thickness Gauge
on page 43 of our StewMac Digital Catalog