| Model | DT-105A |
| Display Range | 0.10 – 25,000RPM with floating decimal |
| Accuracy | ±0.06 rpm: 0.10 – 999.9 rpm |
| ±0.6 rpm: 1,000.0 – 9,999.9 rpm |
| ±0.006% of reading ±1 digit (±2 rpm max.) 25,000 rpm |
| Display | DT-105A: 5 digit 0.47” (12 mm) high LCD |
| Measuring Units | Revolution: RPH, RPM; Feet: FPH, FPM; Miles: MPH; Yards: YPH, YPM; Inches: IPM; Meters: mPH, mPM; Length: m, cm, inches, feet, yards; Total Revolutions: REV |
| Memory System | 13 readings are stored in memory and retained for 5 minutes (last, max., min., and 10 extra measurements) |
| Detection | Optical coupler, 60 pulses/rev. |
| Update Time | 1 second (typical) |
| Over Range Indicator | Flashing numerals |
| Power Requirement | 2 AA 1.5V batteries (Life: Approx. 65 hrs) |
| Operating Temperature | 32° – 113°F (0° – 45°C) |
| Construction | Die-cast aluminum housing |
| Dimensions | 7.2” L x 2.4” W x 1.8” H (182.5 mm x 60 mm x 46 mm) |
| Product Weight | 0.9 lb (400 g) |
| Package Weight | Approx. 2 lb (.91 kg) |
| Approvals | CE |
| Warranty | 2-Year |
| Included Accessories | Two AA Batteries, 2 cone adapters, funnel adapter, 3½” extension shaft, carrying case, NIST certificate, master wheel (6” cir.) |
| Options | -S12 Option: Same as DT-105A except 6” circumference wheel replaced with 12” circumference contact wheel |