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  Home > Tachometers > Hand Held Tachometers >

Checkline DT-105A & DT-107A Contact Tachometer with LED Display
Bright LED 5 digit display
Highly versatile professional contact tachometer
  • Measure RPM, Speed, or Distance
  • Selectable Units of Measure, SI and Imperial
  • Easy to Read, Light Emitting Diode Display
  • Operates about 65 hours on 2 AA batteries

Item# Item Name Starts at Qty Add
ELE-LMA-3 12" Knurled Aluminum Wheel
ELE-FPM-12-CBL 12" Wheel for Belts
ELE-DT-105A Checkline DT-105A Contact Tachometer with LED Display
ELE-DT-107A Checkline DT-107A Contact Tachometer with LCD Display
ELE-DT-107A-12 Checkline DT-107A-12 Contact Tachometer with LCD Display with 12" Cirumference Wheel
Check the items you wish to purchase, then click

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. The DT-107A-12 includes a 12" circumference measuring wheel which is offered for safer and easier surface speed measurement by keeping the users hand farther from the moving surface and slowing down the rotational speed.
Features and Benefits:
  • Built-In memory for last, maximum, minimum and 10 separate readings
  • Rugged cast aluminum housing
  • CE mark Compliant with applicable EU directives
  • Minimum shaft loading over-speed protection Prevents potential instrument damage
  • Includes NIST Calibration Certificate

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


Display Range 0.10 to 25,000 rpm with floating decimal
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, Meters, Yards, Feet, Inches
per Hour Feet, Yards, Miles, Meters, Revolutions
Revolutions, Inches, Feet, Yards, Centimeters
per Second
Revolutions, Inches, Feet, Yards, Centimeters
(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)
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.

Accessories for this product...
Spare Funnel Tip for DT-105/7A
Our Price: $10.00

Spare Cone Tip for DT-105/7A
Our Price: $10.00

Spare Shaft Extension for DT-105/7A
Our Price: $15.00

Spare 12" Wheel
Our Price: $50.00

Spare 6" Wheel
Our Price: $30.00


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Tachometers > Hand Held Tachometers
Reliability Direct, Inc.
900 W. Main Street
Ephrata, PA 17522
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