Lutron 0.5-19999RPM Electronic Contact Tachometer DT-2235B | Digital RPM & Surface Speed Measuring Instrument
The Lutron DT-2235B Electronic Contact Tachometer is a professional digital measuring instrument designed to accurately measure the rotational speed of motors, shafts, machinery and other rotating components. It provides direct-contact RPM measurement along with surface-speed measurement in both m/min and ft/min.
The tachometer features a clear 5-digit LCD display, high measurement accuracy of ±(0.05% + 1 digit) and a wide measurement range of 0.5 to 19,999 RPM. It also stores the last, maximum and minimum readings, making it useful for inspection, maintenance and troubleshooting applications.
Features & Specifications
- Brand: Lutron
- Product Type: Electronic Contact Tachometer
- Model: DT-2235B
- Measurement Range: 0.5 to 19,999 RPM
- Surface Speed Range: 0.05 to 1,999.9 m/min
- Surface Speed: 0.2 to 6,560 ft/min
- RPM Resolution: 0.1 RPM below 1,000 RPM; 1 RPM at 1,000 RPM and above
- Accuracy: ±(0.05% + 1 digit)
- Display: 5-digit, 10 mm LCD
- Sampling Time: 1 second
- Time Base: Quartz crystal
- Memory: Last, maximum and minimum values
- Power Supply: 4 × 1.5V AA (UM-3) batteries
- Operating Temperature: 0°C to 50°C
- Dimensions: 208 × 72 × 37 mm
- Accessories: Carrying case, cone RPM adapter, funnel RPM adapter, surface-speed test wheel and operation manual
- Applications: Motor testing, machinery maintenance, shaft-speed measurement, automotive servicing, pumps, fans and industrial equipment inspection












