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Possessing the same sophisticated features and accessories as our renowned DT-105A the DT-105A-S12 tachometer provide outstanding accuracy in measuring speed and direct linear length via a 12” wheel. The larger wheel rotates more slowly than a standard 6” wheel, thus enabling confident and safe high speed measurement. One year warranty.
free N.I.S.T. certificate and many standard accessories. One year warranty. 
- Measuring Range: 0.10 - 25,000 RPM with floating decimal
- Accuracy (RPM): ±0.06 Range:0.10 - 999.9: ±0.6 Ramge: 1,000.0 - 9,999.9; ±0.006% of reading ±1 digit (or 2 RPM max.) Range: 10,000 - 25,000
- Display: 5 digit 0.47" (12 mm) high LCD
- Measuring Units: Revolutions in RPH,RPM, Linear: FPH,FPM, MPH, YPH,YPM, IPM, mPH,mPM
- Length: m, cm, inches, feet, yards
- Total Revolutions: REV
- Memory: 13 readings are stored in memory and retained for 5 minutes (last, max., min. and 10 extra measurements)
- Display Update Time: 1 second (typical)
- Detection Optical coupler: 60 pulses/rev.
- System Control: Single-chip C-MOS microprocessor
- Over Range Indicator: Flashing numerals
- Voltage Requirement: (2) AA 1.5 V batteries
- Low Battery Indicator: Flashing ”LO BAT”
- Auto Power Shut-Off
- Battery Life: 65 hrs approx.
- Operating Temperature Range: 32° - 113° F (0 - 45° C)
- Decimal Point Floating
- Construction Die-cast aluminum housing
- Weight 0.9 lb (400 g )
- Dimensions: 7.2" L x 2.4" W x 1.8" H (182.5 mm x 60 mm x 46 mm)
- Warranty: 1 year
- Standard Accessories: 2 cone adapters, 1 funnel adapter, 1 3-1/2" extension shaft, NIST certificate, carrying case, 1 (12" cir.) Contact Wheel.
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Features
- Multi-mode speed selection: Features 16 selections for optimum versatility.
- Outstanding Accuracy: provides reliable measurement results.
- Rugged aluminum construction: Built to last.
- Direct length measurement: Offers value/versatility via added applications.
- Extensive speed range: 0.10 - 25,000 RPM.
- Large 5 digit display: Allows easy reading of numbers.
- Long battery life: 40 - 60 hours Advanced power management.
- Memort: 10 test memory capacity (selectable to 5 minutes or more) Stores last/min/max readings.
- Total revolution display: Enables rotation counting during process analysis.
- N.I.S.T. traceable Certificate of Calibration: Permits easy compliance with regulations.
- CE mark: Compliant with applicable EU directives.
- Minimum shaft loading overspeed protection: Prevents potential instrument damage.
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