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 Shimpo DT-105A - DT-107A Handheld Tachometers includes a 12" (30 cm) 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
- Built-in memory for last, maximum, minimum and 10 separate readings
- Rugged cast aluminum housing
- Includes NIST calibration Certificate
LCD Display
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.
Specifications
| 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 | 2 cone adapters, 1 funnel adapter, 3-1/2" extension shaft, 1 surface speed wheel (6" circumference), carrying case, operating instructions |
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