m&h Radio-wave Touch Probe RWP20.41


m&h RWP20.41 - do not compromise, proven radio-wave transmission from m&h!

The touch probe RWP20.41 has been designed for complex measuring tasks. Modular extensions enable measuring inside the workpiece or in deep cavities. The freely adjustable trigger force allows both triggering on very thin-walled workpieces at minimum trigger force and the use of heavy cross probes at maximum force.

  • Description
  • Features & Benefits
  • Technical Data
  • Related Information
  • Applications
  • Downloads


  • Determination of workpiece zero point
  • Determination of workpiece position
  • Control measurement of workpiece dimensions
  • Proven and safe SCS technology
  • Reliable and unambiguous activation mechanisms ensure a smooth measuring procedure
  • Touch probe can be extended almost without limit



  • Highest operational reliability through transmission protocol
  • Permanent check of radio channels for interfering signals
  • Automatic blocking of channels by Self Channel Select (SCS)
  • 64 radio channels in protected frequency range, proven worldwide
  • 433 MHz transmitting frequency – internationally approved and high-penetration
  • No machine downtime due to interfering signals
  • High-penetration
  • Automatic blocking of channels by SCS technology


  • Switch-on method AZ – activation of touch probe through pullstud (patented)
  • Switch-on method WS – activation through inner coolant or spindle air-blow (patented)
  • Switch-on method HSK – automatic activation in the spindle through mechanics in HSK shank
  • No machine downtime due to false activation
  • Safest activation systems
  • No M-Function necessary
Unidirectional repeatability 2 Sigma 1 μm
Recommended probing speed 254 mm/min – 2000 mm/min
Sensing directions ±X, ±Y, -Z
Max. stylus deflection XY ±12,5°, Z -6 mm
Trigger force with 50mm stylus XY = 0,5 - 2 N, Z = 3,5 - 14,5 N, adjustable
Extensions (Ø 25 mm) 30 mm, 50 mm, 100 mm, 200 mm
Power supply 1 x 9 V Battery
Protection class IP68: EN60529
Weight without shank 1300 g
Temperature range 10 °C – 50 °C
Material steel
Transmitting frequency range 433,075 MHz – 434,650 MHz
Number of channels 64
Interchannel spacing 25 KHz
    Modular construction
  • Touch probe can be extended almost without limit
  • Slim standard extensions in four different lengths can be combined
  • For measuring tasks inside the workpiece
  • Highest precision: measuring mechanism close to measuring point
    Trigger force freely adjustable
  • Measuring of thin sections with minimal measuring force
  • Measuring of soft materials
  • Measuring with large cross probes at max. measuring force
  • No false signals during acceleration
  • Easy adjustment from the front without dismantling (patented)
    Performance and process reliability
  • Protected frequency range, proven worldwide
  • Safe signal transmission through transmission protocol
  • 64 channels freely adjustable
  • Optimum receiving technology through multiple sampling
  • Reliability from mechanical activation
    Sturdy and protected
  • Screw-in break shaft
  • Double membrane sealing
  • Chip guard shield
  • Probe housing made of stainless steel
  • Water-proof probe sealing using IP68 standard
    Operation suitable for the workshop
  • Easy channel adjustment at the push of a button
  • Digital channel display
  • Common, standard battery (Type 9 V block)
  • Quick battery replacement without tools
  • Easy exchange of the stylus
  • Easy lateral run out adjustment


CCase Study Bomacon B. V. - Netherlands 2014-03-05

Radio signals for reliable precision of large parts

993 KB (PDF)

Case Study Havlat - Zittau 2013-10-23

Probing away set-up times

553 KB (PDF)

Case Study Wiener Linien 2013-09-26

Enhanced roadworthiness

768 KB (PDF)

Case Study Karl Rejlek GmbH - Wien 2013-09-26

Mehr als 30% Zeit gespart!

712 KB (PDF)

FKT Formenbau und Kunststofftechnik GmbH - Germany 2013-09-09
1 MB (PDF)

Case Study ARBURG - Lossburg 2013-05-17

Probing deep inside

692 KB (PDF)

Case Study Hofmann & Engel - Moritzburg 2013-05-17

Mould complete with measuring protocol

898 KB (PDF)

Case Study Weingaertner - Kirchham 2013-05-14

Simply reliable

869 KB (PDF)


m&h Styli and Accessories Brochure 2014-08-18 3 MB (PDF)

m&h Radio-wave Probing Systems 2013-09-05 2 MB (PDF)