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Hand-Held Tachometers
Tachometers Main Menu
PLT-5000 Combination Contact & Non-Contact Tachometer
CDT-2000 Combination Contact & Non-Contact Tachometer
CDT-1000 Non-Contact Only Tachometer
DT-105A/107A Contact Only Tachometers
DT-205L/207L Combination Contact & Non-Contact Tachometers
ET-2109SLR Intrinsically Safe Combination Tachometer
MT-200/500 Eddy Current Mechanical Tachometers

DT-105A / DT-107A
Contact Tachometer

DT-105A and DT-107A Contact tachometerDT-105A (LCD MODEL)

0.10 - 25,000 RPM

Accurately measure rotational and surface speed, as well as length. Built-in selector switch permits the user to display readings in a wide variety of engineering units.


 Built-in memory for last, maximum, minimum and 10 separate readings
 Rugged cast aluminum housing
 Free NIST calibration certification


Display Range 0.10 to 25,000 rpm with floating decimal 
Accuracy 0.10 to 999.99 rpm: 0.06 rpm
1,000.0 to 9,999.9 rpm: 0.6 rpm
10,000 to 25,000 rpm: 0.006% rpm 
Measurement Units  
per Minute Revolutions, Inches, Feet, Yards, Meters 
per Hour Revolutions, Inches, Feet, Yards, Meters 
Total Revolutions, Inches, Feet, Yards, Centimeter, Meters 
per Second Revolutions, Inches, Feet, Yards, Meters (optional, inquire) 
Memory System 13 readings are stored in memory and retained for 5 minutes
(last, max., min., and 10 measurements) 
Over-Range Indicator Flashing numerals 
Detection Optical coupler, 60 pulses/rev 
Update Time 1 second (typical) 
Batteries Size: 2 1.5 V AA
Life: Approx. 65 hrs. (DT-105A)
Life: Approx. 40 hrs. (DT-107A) 
Low Voltage Indicator Flashing "LO BAT" display (DT-105A)
"B" display (DT-107A) 
Operating Temp 32 to 113 F (0 to 45 C) 
Weight 0.9 pounds (400 grams) 
Dimensions 7.3" L x 2.4" W x 1.8" H 
Warranty 1 year 
Accessories Included 2 cone adapters, 1 funnel adapter, 3-1/2" extension shaft, 1 surface speed wheel (6" circumference), carrying case, operating instructions 


Complete Kit:

All models are supplied as a complete kit including 6" circumference surface speed wheel, two cone tip adapters, funnel tip adapter, shaft extension, two AA batteries and and an operating instruction manual - all supplied in a foam-fitted carrying case.

DT-105A and DT-107A Contact Tachometer


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