Handheld surface roughness tester for external surfaces and grooves


  • Pocket-sized and economically priced!
  • External and internal finish testing with swivable tracer
  • Ra and Rz parameters in one instrument and all available after each individual test
  • Standard 9V battery
  • Auto-off after 2 minuter
  • Standard cut-off 0.8mm, adjustable to 1-3-5 times
  • Piëzo-electric pick-up stylus for external surfaces with Diamond tip of 2 micron according to the latest ISO Standards

Technical specs

Measuring rangesRa-- 0.03μm ~ 6.35μm (1μ”~250μ”)
Rz-- 0.2μm ~ 25.3μm (8μ”~999μ”)
Display resolution0.01μm / 1μ”
Cut-off0.25mm / 0.001”, 2RC filter, select 1-3-5 times
0.8mm / 0.03”, 2RC filter, select 1-3-5 times
2.5mm / 0.01”, 2RC filter, select 1 time
Display3-digit LCD
AccuracyMeets ISO and DIN standards
Probe TypePiezoelectric
Maximum stylus force15.0mN / 1500mgf
Stylus tip radiusDiamond, 2 micron
Power9-volt alkaline battery
Battery capacityApprox. 3000 measurements

Order details

Handheld surface roughness tester for external surfaces and grooves

Standard delivery

  • Instrument
  • Protection cover
  • Roughness test plate Ra
  • Battery 9V standard
  • Carrying case
  • Manual
  • INNOVATEST certificate


Tracers for special applications
UKAS certified reference standards
Stand for stable testing
Mini-printer (R130/4200) with printer cable
Datacable to MS-Hyperterminal