Mahr Pocket Surf® IV Portable Surface Roughness Gage (POCKET-SURF-IV)

    Mahr Pocket Surf® IV Portable Surface Roughness Gage
    Starting at:

    $2,651.00 1. Quote Required


    This product has been discontinued.

    • Product Code:
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    • Product Weight: 4.00

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    Mahr Federal introduces the Pocket Surf® IV portable surface finish gage with its simple-to-use one-button operation and an easy-to-read display. The instrument shows measurement results of Ra, Rz, or Rmax and employs Mahr's unique MarConnect universal interface allowing for USB, RS-232 or digimatic output with the appropriate cable. With MarCom software you can easily transfer your measurement data into Microsoft Excel or any other Microsoft application.

    A new feature of the Pocket Surf® IV allows for the display of Ra, Rz or Rmax measurements with only one stroke. Calibration of the unit is also more straightforward with a single button calibration process that is fast, secure and requires no additional tools or accessories.

    The New Pocket Surf IV retains all of the original features of the Pocket Surf I, which revolutionized the portable surface gage market over 30 years ago. 

    In addition, the new Pocket Surf® IV continues to be solidly built, with a durable cast aluminum housing to allow accurate, reliable surface finish gaging for years to come. The instrument is also compatible with all existing probes, stands and accessories.

    The unit is available in two configurations with either a 10 um or 5 um radius tip on the standard general-purpose probe that comes with the unit.


    • Four switchable probe positions – axial (folded) or at 90°, 180° or 270°
    • Easy access to hard-to-reach surfaces such as inside and outside diameters
    • Simple one-button operation to begin the measuring stroke
    • Easy-to-read LCD readout of the measured roughness value, in microinches or micrometers, within half a second after the surface is traversed
    • Out-of-range (high or low) and "battery low" signals displayed
    • Selectable traverse lengths of 1, 3 or 5 cut-offs of 0.8 mm/0.030"
    • Operates in any position – horizontal, vertical, and upside down



    Traverse Length (Nominal) 


    2,0 mm / 0.075 in
    3,5 mm / 0.135 in



    5,0 mm / 0.195 in

    Evaluation Length


    0,8 mm / 0.030 in
    2,4 mm / 0.090 in



    4,0 mm / 0.150 in

    Number of Cutoffs/
    Switch Position






     Traverse Speed 


    5,8 mm / 0.2 in per Second



    0,08 mm / 0.030 in ASME 2 RC-Filter

     Probe Type



     Maximum Stylus Force


    15.0 mN / 1500 mgf



    Consumer Type Alkaline Battery, 9 Volt 

     Battery Capacity


    Approx. 2,500 Measurements, Depending on Frequency of Use and Output Option

     Operating Temperature


    10° to 45°C / 50° to 113° F

     Storage Temperature


    -20° to 65°C / -4° to 149°

    Additional Info

    Package Includes