These gauges measure, and some record the peak to valley surface profile heights from Testex Press-0-Film replica tape.

Testex Micrometer Dial Thickness Gauge

The Testex Micrometer Dial Thickness Gauge is to be used with Testex replica Press-O-Film Tape to measure the surface roughness of blast cleaned surfaces.

Start measurements with the grade of tape with the target profile closest to the center of its range. Each grade of replica tape is most accurate near the center of its specified range.


Grade Range When Used With Gage
Medium5 to 75 microinch / 0.1 to 2 microns
Coarse Minus0.5 to 1.0 mils / 12 to 25 microns
Coarse0.8 to 2.5 mils / 20 to 64 microns
X-Coarse1.5 to 4.5 mils / 38 to 115 microns
X-Coarse Plus4.6 to 5.0 mils / 116 to 147 microns

Defelsko RTRH-1 Positector RTR H1 Standard Replica Tape Reader

  • PosiTector Standard Gage Body BDYSTD
  • PosiTector RTR H Probe PRBRTRH
  • Stainless steel burnishing tool and 5 cleaning cards
  • Surface cleaning putty and check shim(s)
  • Protective lens shield with belt clip
  • Wrist strap and protective rubber holster with belt clip
  • 3 AAA alkaline batteries
  • PosiSoft Software and USB cable
  • Long Form Certificate of Calibration traceable to PTB
  • Nylon carrying case shoulder strap and instructions
  • Two (2) year warranty


Peak Height (HL) Measurement Range20 to 115 μm (0.8 to 4.5 mils)
Peak Height (HL) Accuracy± 5 μm (± 0.2 mils)
Peak Height (HL) Resolution1 μm (0.1 mil)
Anvil DiameterØ6.35 mm (Ø0.25 inch)
Anvil Pressure110 gram-force (1.1 Newtons)
Size152 x 61 x 28 mm | (6″ x 2.4″ x 1.1″)
Weight140 g (4.9 oz.) without batteries