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DT-2100 Combination Contact / Non-Contact Tachometer with USB Output

Made in Japan
Click images to enlarge.
The DT-2100 is an advanced combination contact / non-contact hand-held tachometer. The DT-2100 features data-logging, USB output and a programmable scaling feature to offset RPM according to application variables. It features a backlit LED Display with upper/lower limit icons and a unique X-Y Graphic mode. Additional display modes unique to the DT-2100 is the "Needle Sweep" and Bar Graph" offers the user a choice of how to view the data. The display can also be inverted to optimize the viewing angle.

In non-contact mode the tachometer measures RPM up to 99,999 RPM at distances up to 13 feet or 500 cm. The DT-2100 can also measure contact RPM, surface speed, or length using the supplied screw-on adapter.

Data logging can be set for single point or continuous logging. Single data points as well as statistics (Max, Min, Average) can be stored in the built-in memory and recalled to the display. Often users need to adjust machinery during testing, with the DT-2100 you can mount it on a tripod, select continuous logging and adjust machinery as necessary. After the test, you can easily review the data on the DT-2100's display or download to a computer using the optional Windows Software.

The DT-2100 is supplied as a complete kit with 2 cone tip adapters, funnel tip adapter, shaft extension, 6 inch circumference surface speed wheel, reflective tape, 2 AA batteries ... all supplied in a foam-fitted carrying case. A NIST-Traceable Calibration Certification is optionally available.

NSN#: 6680-01-661-1493


  • Data Logging with Continous, Single Unit or Statistics modes
  • View data and statistics on tachometer display or with optional Windows software (Windows 7-10 Compatible)
  • Built-in Memory with USB Data Output
  • Powerful laser for non-contact measurement 2” to 13.1’ (5 to 400 cm)
  • Non-Contact length measuring mode (requires reflective tape or edge of roller)
  • Programmable multiplier to convert reading based on wheel diameter, gear ratios, etc...
  • On-screen hi-lo limits for pass/fail analysis
  • Auto-detection of contact adapter
  • NSN: 6680-01-661-1493
  • Reversible Display
  • 1/4-20 Threaded Insert on bottom of housing for fixed-mounting or use on Tripod
  • Optional Low Speed Contact Adapter for applications with a measuring range of 0-10 RPM - DT-2100-OP-CAS-L
  • A NIST-Traceable Calibration Certification is optionally available (p/n NISTCAL at $100)


Range6-99,999 rpm Non-contact
0.8-25,000 rpm Contact
Resolution Non-Contact1 RPM
Resolution Contact0-9,999: 0.1 RPM
10,000 and above: 1 RPM
Resolution OtherFor other units, refer to PDF available in downloads section
Accuracy±0.006% of reading ±1 least significant digit
Measuring UnitsSpeed: rpm, m/min, cm/min, inch/min, ft/min, yds/min, rps, m/sec, cm/sec, inch/sec, km/hr, mph
Distance: cm, m, km, in, ft, yd
MemoryContinuous Mode: 1000
Single Mode: 100
Statistics Mode: 100
Laser Sensing Distance2 inches up to 13.1 Feet (5 to 400 cm)
DisplayGraphical Blue Light OLED, reversible
Display Update TimeSelectable: 100 ms, 500 ms, 1 sec, 5 sec
Data Transfer RateSelectable: 100 ms, 500 ms, 1 sec, 5 sec (to optional software)
Power2 AA 1.5V batteries or USB
Battery LifeApprox: 20 hours with brightness set to 20%
Temperature Limits32º - 113ºF (0º - 45ºC) Non-Condensing
Dimensions6.1” x 2.2” x 1.4” (155 x 55 x 35 mm)
Product Weight4.14 oz (125 g)
ApprovalsCE, RoHS, PSC, FDA, IEC/EN 60825-1 : 2007
Calibration CertificateOptional
Included Accessories2 cone adapters, funnel adapter, 3½” extension shaft, surface speed wheel (6” circumference), 2 AA batteries, contact adapter and carrying case

DT-2100 Software Demonstration

Complete Kit

The DT-2100 is supplied as a complete kit with tachometer, 2 cone adapters, funnel adapter, 3.5” extension shaft, surface speed wheel (6” circumference), reflective tape, 2 AA batteries, contact adapter in a foam-fitted carrying case


Buy Now

Item Description Price
Tachometer with USB Output - Combination Contact / Non-Contact Operation
Software for DT-2100 Data Logging Tachometer, includes USB cable. (Windows 7-10 Compatible)
Protective Rubber Sleeve for DT-2100 Tachometer
NIST Traceable Calibration Certificate for DT-2100 Tachometer
ISO-17025 Traceable Certificate for DT-2100 Tachometer
Screw-On Contact Adapter & Accessory Kit for DT-2100 Tachometer
LOW SPEED Screw-On Contact Adapter for DT-2100 Tachometer, Range 0.1 - 10.0 RPM
Cone Tip for Hand-held Tachometers [CONE]
Funnel Tip for Hand-held tachometers
Shaft Extension for Tachometers, 3 inch
6 Inch Circumference Tachometer wheel, 7mm shaft (FPM-6)
12 Inch Circumference Tachometer wheel, 7mm shaft (FPM-12)
Reflective Tape, 1x7 Inch Strip - TAPE
Reflective Tab Sheet, 35 1/2" x 1/2" Squares - TAB
Qty 4 Reflective Tab Sheet, 35 1/2" x 1/2" Squares
Tripod for Tachometers and Stroboscopes
4-pack AA Ni-MH Rechargeable Batteries & Charger Kit
Mini USB Cable for use with DT-2100
6 in Circumference U-grooved Wheel - FPM-6-GV
In stock
1 Week Lead Time (Estimated)
2-3 Week Lead Time (Estimated)
Lead Time Varies, Please contact us for availability.