| 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) |