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Reed Instruments - Test and Measurement Equipment


REED R7100 Combination Tachometer

Dual function tachometer features the ability to measure RPM with non-contact built-in laser and contact (m/min) measurements quickly and accurately.

The R7100 combination tachometer features both the ability to measure RPM (revolutions per minute) in rotational equipment and surface speed m/min (meters per minute) with included contact adapters.

The R7100 features a built-in laser pointer to assist with identifying the target area.

 Features:    (Formerly Model ST-6236B)    

  • Dual function unit with both contact and non- contact capabilities
  • Non-contact function utilizes laser light beam for improved accuracy
  • Removeable contact adapter for contact mea-surements
  • Also supplied with adapters for rpm and sur-face speed measurements
  • Recalls Max/Min and last values
  • Large, easy to read display
  • Autoranging with 0.05% accuracy
  • Includes: large and small cone tip, battery and carrying case
  • NIST Traceable Certification Available


  • Photo Range: 5 to 99,999 rpm
  • Contact Range: 5 to 19,999 rpm
  • Surface Speed Range: 0.05 to 1,999 mpm
  • Resolution: 0.1 rpm
  • Accuracy: ±(0.05% + 1 digit)
  • Sampling Rate: 1/second
  • Display: 5-digit LCD
  • Dimensions: 6.3 x 2.8 x 1.5"
  • Weight: 7.9 oz

REED R7100 Combination Tachometer

Spec Sheet (PDF)

NIST Traceable Certification Available

NIST Traceable Certification Available - (Optional)

Note: NIST Certification may delay shipment by 1 - 3 Days

Orders over $300 ship FREE to 48 States

REED R7100 Combo Tachometer


REED R7100 Combination Tachometer

REED R7100 Combo Tachometer w/ NIST


REED R7100 Combination Tachometer w/ NIST
Replacement Parts:

Replacement Wheel
for R7100/ST-6236B


Replacement Wheel for R7100/ST-6236B Tachometers

Replacement Shaft
for R7100/ST-6236B


Replacement Shaft for R7100/ST-6236B Tachometers

Replacement Funnel Tip
for R7100/ST-6236B


Replacement Funnel Tip for R7100/ST-6236B Tachometers

Replacement Cone Tip
for R7100/ST-6236B


Replacement Cone Tip for R7100/ST-6236B Tachometer

Orders over $300 ship FREE to 48 States

REED Tachometers & Stroboscopes:
REED K4020 Stroboscope
REED K4020 Stroboscope
100-100,000 fpm
REED R7100 Combination Tachometer
REED R7100
Combination Tachometer
REED R7140 Combination Contact / Laser Photo Tachometer
REED R7140
Combination Tachometer
REED R7150 Professional Combination Tachometer
R7150 Professional
Combination Tachometer

*  *  *  *  *  *  *

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