McMaster-Carr logo
    Filter by
    Tachometer Type
    System of Measurement
    Minimum Velocity Measured
    Power Source
    Maximum Velocity Measured
    Housing Material
    Digital Display Type
    Battery Size
    Maximum Measuring Distance
    Display Type
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Batteries Included
    Length
    Environment
    Container Type
    Wheel Circumference
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    40 Products

    High-Accuracy Digital Contact Tachometers with Certificate of Calibration

    Image of Product. Front orientation. Contains MultipleImages. Tachometers. High-Accuracy Digital Contact Tachometers with Certificate of Calibration.
    Contact tachometers come in direct contact with the object measured and are an excellent choice for dirty and dusty environments.
    ±0.006% Accuracy—Accurate to within ±0.006% of reading, these tachometers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy.
    LCD Display—Choose tachometer with LCD for use in bright light.
    LED Display—Choose tachometers with LED for use in dimly lit areas.
    Digital Display
    Type
    Includes
    Measurement Unit
    Batteries
    Included
    Each
    0.1 rpm to 25,000 rpm Velocity Measured Range (±0.006% Accuracy)
    LCD6" Speed Wheel, Measuring Tip for Flat-End Surfaces, 3 1/2" Extension Shaft, Carrying Case, Two Measuring Tips for Shafts with Center HoleCentimeters, Feet, Feet per Hour, Feet per Minute, Inches, Inches per Minute, Meters, Meters per Hour, Meters per Minute, Miles per Hour, Revolutions per Hour, Revolutions per Minute, Total Revolutions, Yards, Yards per Hour, Yards per MinuteYes000000000000000
    LCD12" Speed Wheel, Measuring Tip for Flat-End Surfaces, 3 1/2" Extension Shaft, Carrying Case, Two Measuring Tips for Shafts with Center HoleCentimeters, Feet, Feet per Hour, Feet per Minute, Inches, Inches per Minute, Meters, Meters per Hour, Meters per Minute, Miles per Hour, Revolutions per Hour, Revolutions per Minute, Total Revolutions, Yards, Yards per Hour, Yards per MinuteYes00000000000000
    LED6" Speed Wheel, Measuring Tip for Flat-End Surfaces, 3 1/2" Extension Shaft, Carrying Case, Two Measuring Tips for Shafts with Center HoleCentimeters, Feet, Feet per Hour, Feet per Minute, Inches, Inches per Minute, Meters, Meters per Hour, Meters per Minute, Miles per Hour, Revolutions per Hour, Revolutions per Minute, Total Revolutions, Yards, Yards per Hour, Yards per MinuteYes00000000000000
    LED12" Speed Wheel, Measuring Tip for Flat-End Surfaces, 3 1/2" Extension Shaft, Carrying Case, Two Measuring Tips for Shafts with Center HoleCentimeters, Feet, Feet per Hour, Feet per Minute, Inches, Inches per Minute, Meters, Meters per Hour, Meters per Minute, Miles per Hour, Revolutions per Hour, Revolutions per Minute, Total Revolutions, Yards, Yards per Hour, Yards per MinuteYes00000000000000
     
    Accessories and Replacements for Tachometers
    Note: Units are calibrated to work with either a 6" or 12" circumference speed wheel but not both.
    Replacement AA Batteries00000000 Pkg. of 4 00000
    1/2" Dia. Measuring Tip for Flat-End Surfaces00000000 Each 00000
    1/2" Dia. Measuring Tip for Shafts with Center Hole00000000 Each 0000
    1 1/4" Dia. Measuring Tip for Shafts with Center Hole00000000 Each 00000
    3/4" Dia. Measuring Tip for Shafts with Center Hole00000000 Each 00000
    3/4" Dia. Measuring Tip for Flat-End Surfaces00000000 Each 00000
    6" Circumference Smooth Speed Wheel00000000 Each 00000
    12" Circumference Smooth Speed Wheel00000000 Each 00000
    6" Circumference Grooved Speed Wheel 00000000 Each 00000
    12" Circumference Grooved Speed Wheel00000000 Each 000000
    Carrying Case00000000 Each 00000
    3 1/2" Extension Shaft00000000 Each 00000

    Laser Measurers

    Point a laser to determine the distance to an object up to hundreds of feet away. These measurers show the distance on the LCD or viewfinder display.
    LCD with Backlight, Color Screen, and Touch Screen
    Image of Product. Front orientation. Laser Measurers. LCD with Backlight, Color Screen, and Touch Screen.
    Measurers with a color touch screen have a camera, so you can select your target on the screen. You can also magnify the image up to four times larger than its original size.
    Cannot Be Sold To—Measurers that cannot be sold to the listed regions do not meet energy efficiency requirements.
    Laser Targets—You’ll need a laser target (sold separately) to measure distances over 150 ft. or when shining the laser on an uneven, clear, or mirrored surface.
    Measurers
    Laser Targets
    Max. Distance
    Measured, ft.
    Measurement Unit
    No. of Values
    Stored
    Lg. Accuracy
    Range
    Includes
    Measuring Functions
    Laser
    Color
    Batteries
    Included
    Battery
    Rechargeable
    Enclosure
    Rating
    Cannot Be
    Sold To
    Each
    Each
    820Feet/Inches/Meters/Millimeters/Yards1,000-0.039" to 0.039"USB CableAdd, Subtract, Calculate Square Feet, Calculate Cubic Feet, BluetoothRedYesYesIP65
    		California00000000000000000000000000000
    Viewfinder
    Image of Product. Front orientation. Contains MultipleImages. Laser Measurers. Viewfinder.
    Laser Targets—You’ll need a laser target (sold separately) to measure distances over 150 ft. or when shining the laser on an uneven, clear, or mirrored surface.
    Measurers
    Replacement
    Batteries
    Laser Targets
    Max. Distance
    Measured, yd.
    Measurement
    Unit
    Lg. Accuracy
    Range, yd.
    Batteries
    Included
    Each
    Pkg.
    Qty.
    Pkg.
    Each
    1,000Meters/Yards-1 to 1Yes000000000000000100000000000000000000000000

    Flat-Material Measuring Wheels

    Image of Product. Front orientation. Measuring Wheels. Flat-Material Measuring Wheels, 1 Wheel.
    Image of Specification. Front orientation. Backward. Flat-Material Measuring Wheels.
    Image of Specification. Front orientation. Forward. Flat-Material Measuring Wheels.

    1 Wheel

    Backward

    Forward

    Measure sheets, rolls, and strips using these wheels and their attached counters.
    Aluminum Wheel—Aluminum wheels are for high temperature processes and coarse materials such as sandpaper. The surface is knurled for good contact.
    Plastic Wheel—Plastic wheels are for smooth materials such as paper and cloth.
    Measuring Wheels
    Replacement
    Measuring Wheel Counters
    Replacement
    Wheels
    Max.
    Overall
    Mounting Hole
    No. of
    Wheels
    Material Travel
    Direction
    Lg. Measured,
    yd.
    Speed,
    fpm
    Wheel
    Circumference
    Tread
    Wd.
    Lg.
    Wd.
    Ht.
    No.
    of
    Dia.
    Ctr.-to-Ctr.
    Lg.
    Measuring Functions
    Each
    Each
    Each
    Yards
     
    Aluminum Wheel
    1Backward999,9993,00012"5/8"3 13/16"19"6 1/2"23/8"1 1/2"Add
    Subtract
    Zero Reset    		000000000000000000000000000000000000000000
    1Forward999,9993,00012"5/8"3 13/16"19"6 1/2"23/8"1 1/2"Add
    Subtract
    Zero Reset    		000000000000000000000000000000000000000
     
    Plastic Wheel with Rubber Tread
    1Backward999,9993,00012"5/8"3 13/16"19"6 1/2"23/8"1 1/2"Add
    Subtract
    Zero Reset    		00000000000000000000000000000000000000
    1Forward999,9993,00012"5/8"3 13/16"19"6 1/2"23/8"1 1/2"Add
    Subtract
    Zero Reset    		00000000000000000000000000000000000000
     
    Accessories and Replacements for Measuring Wheels
    Measuring Wheel Repair Kits
    Includes
    Each
    Handle, Shaft, Springs000000000000
    Replacement Measuring Wheel Counter Mounts
    Component
    Each
    Counter Mounting Bracket0000000000000
    Replacement Brackets
    Component
    Each
    Measurer Mounting Bracket0000000000000
    Replacement Measuring Wheel Mounts
    Component
    Includes
    Each
    Mounting KitCounter Mounting Bracket, Lug, Measurer Mounting Bracket, Rod00000000000000

    High-Accuracy Contact/Noncontact Tachometers

    Image of Product. Front orientation. Tachometers. High-Accuracy Contact/Noncontact Tachometers.
    Switch these tachometers from contact to noncontact mode by attaching the included adapter. They come with a calibration certificate traceable to NIST that states they've passed a test for accuracy.
    ±0.006% Accuracy—Accurate to within ±0.006% of reading.
    LCD Display—Choose tachometer with LCD for use in bright light.
    LED Display—Choose tachometers with LED for use in dimly lit areas.
    1/4"-20 Female Threaded Bushing—All have a 1/4”-20 female threaded bushing for tripod mounting.
    Digital Display
    Type
    Includes
    Max. Measuring
    Distance, ft.
    Measurement Unit
    Batteries
    Included
    Each
    6 rpm to 99,999 rpm Velocity Measured Range (±0.006% Accuracy)
    LCD6" Speed Wheel, 1/4"-20 Female Threaded Bushing, 7" Reflective Tape, Contact to Noncontact Mode Adapter, Measuring Tip for Flat-End Surfaces, Measuring Tip for Shafts with Center Hole20Feet, Feet per Minute, Inches, Inches per Minute, Meters, Meters per Minute, Revolutions per Minute, Yards, Yards per MinuteYes000000000000000
    LCD12" Speed Wheel, 1/4"-20 Female Threaded Bushing, 7" Reflective Tape, Contact to Noncontact Mode Adapter, Measuring Tip for Flat-End Surfaces, Measuring Tip for Shafts with Center Hole20Feet, Feet per Minute, Inches, Inches per Minute, Meters, Meters per Minute, Revolutions per Minute, Yards, Yards per MinuteYes00000000000000
    LED6" Speed Wheel, 1/4"-20 Female Threaded Bushing, 7" Reflective Tape, Contact to Noncontact Mode Adapter, Measuring Tip for Flat-End Surfaces, Measuring Tip for Shafts with Center Hole20Feet, Feet per Minute, Inches, Inches per Minute, Meters, Meters per Minute, Revolutions per Minute, Yards, Yards per MinuteYes00000000000000
    LED12" Speed Wheel, 1/4"-20 Female Threaded Bushing, 7" Reflective Tape, Contact to Noncontact Mode Adapter, Measuring Tip for Flat-End Surfaces, Measuring Tip for Shafts with Center Hole20Feet, Feet per Minute, Inches, Inches per Minute, Meters, Meters per Minute, Revolutions per Minute, Yards, Yards per MinuteYes00000000000000
     
    Accessories and Replacements for Tachometers
    Tips measure the rotational speed of shafts and other spinning objects.
    Tips for flat-end surfaces are often used with pulleys and circular saws. They have a concave surface to fit flush over bumps, such as screw heads.
    Tips for shafts with center hole are cone-shaped, so they’ll fit the inner diameter of different hole sizes.
    Speed wheels measure the length and speed of conveyor belts, bolts of fabric, and material on spools. They have a grooved edge to fit over wire, cable, and cords.
    Replacement AA Batteries00000000 Pkg. of 4 00000
    1/2" Dia. Measuring Tip for Flat-End Surfaces00000000 Each 00000
    1/2" Dia. Measuring Tip for Shafts with Center Hole00000000 Each 0000
    1 1/4" Dia. Measuring Tip for Shafts with Center Hole00000000 Each 00000
    3/4" Dia. Measuring Tip for Shafts with Center Hole00000000 Each 00000
    3/4" Dia. Measuring Tip for Flat-End Surfaces00000000 Each 00000
    6" Circumference Smooth Speed Wheel00000000 Each 00000
    12" Circumference Smooth Speed Wheel00000000 Each 00000
    6" Circumference Grooved Speed Wheel 00000000 Each 00000
    Carrying Case00000000 Each 00000
    Reflective 1/2" Sq. Tape Tabs (Sheet of 35)00000000 Each 0000
    Reflective Tape Roll (5 ft. Lg. × 1/2 Wd.)0000000 Each 00000
    Replacement Contact Mode Adapter00000000 Each 00000
    3 1/2" Extension Shaft00000000 Each 00000

    Measuring Wheels

    Image of Product. Front orientation. Measuring Wheels. Style K.

    Style K

    Roll these wheels along a surface to measure long distances. Choose a wheel diameter of 11.5” or larger for uneven surfaces. Wheels with a diameter less than 11.5” are good for smooth, hard surfaces.
    Digital Display—Wheels with a digital display give you the option to show measurements in inch or metric units. Because they run on batteries, they can lose power while measuring.
    Plastic Wheel—Plastic wheels are lightweight and work best on smooth, hard surfaces.
    Style K—Style K operates on a nonreplaceable battery with a minimum 10-year life.
    Wheel Display—Those with a display on the wheel keep both the wheel and counter in your line of sight, so you can guide and stop the wheel for an accurate measurement.
    Telescoping Handle—Wheels with a telescoping handle let you change the length of the handle. When set to shorter lengths, you can use them on elevated surfaces such as countertops.
    Style
    Wheel
    Dia.
    Display
    Location
    Max. Distance
    Measured, ft.
    Measurement Unit
    Tread
    Pattern
    Handle
    Type
    Ht.
    Measuring
    Functions
    Batteries
    Included
    Each
    Digital Display
     
    Plastic Wheel with Rubber Tread
    K12 1/2"Wheel9,999Feet/Yards/MetersSolidTelescoping27" to 40"Zero ResetYes00000000000000
     
    back to top