Measuring Range: 6 - 99,999 rpm

Measuring Range Contact: 0.8 - 25,000 rpm

Accuracy: ±1 rpm: 6 - 8,300 rpm / ±2 rpm: 8,301 - 25,000 rpm / ±0.006 % of reading / ±1 digit (or 7 rpm max.): 25,001 - 99,999 rpm

Display 5: digit 0.47””(12 mm) high LCD

Measuring Unit: rpm: (Non Contact up to 14’ away) Contact: ypm, mPM, fpm, ipm and Length; yd, m, ft, in, linear rate and length: using contact adapter included and 6” or 12” circumference wheels.

Measuring Mode: USB mode; PC online measuring / standard (STD) mode; Standard measuring / Average (AVE) mode; Average data measuring

Memory: STD mode; 24 blocks, 10 points/block (Total; 240 data) AVE mode; 30 blocks (Last, Max, Min, Average data in each block) Date and hour of start/finish are stored in each block. (Can download data with USB communication.)

USB communication: USB 1.1

Display Update Time: 1 second (typical)

Detection: Laser diode

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” display

Auto Power Shut-Off: Yes (except USB mode)

Battery Life: 15 hrs Approx.

Operating Environment: Non-corrosive

Operating Temperature Range: 32° - 113°F (0 - 45°C)

Construction: Die-cast aluminum housing

Weight: DT-209X: 0.9 pound (400g) / DT-209X-S12: 1.0 pound (460g)

Dimensions: 6.6””L x 2.4””W x 1.8””H (167.5 mm x 60 mm x 46 mm)

Warranty: 1 year

Standard Accessories: Reflective tape, 2 cone adapters, funnel adapter, 3 1/2” Extension shaft carrying case, NIST certificate, Master Wheel (6” cir.) and 200L adapter, USB cable, case, NIST certificate, Master Wheel (6” cir.) and 200L adapter, USB cable, Application software (CD-R)