| Measurement Modes |
Contact RPM, non‑contact (optical) RPM, Frequency, Count, Surface Velocity, Length |
| Rotational Velocity (RPM) |
Non‑contact: 1–99,999; Contact: 1–19,999 |
| Frequency Range |
Non‑contact: 1–1,666 Hz; Contact: 1–333 Hz |
| Count (REV) |
1–99,999 revolutions |
| Surface Velocity (contact) |
With 0.1 m wheel: 0.1–1,999 m/min, 0.4–6,550 ft/min, 4–78,700 in/minWith 6″ wheel: 0.15–1,524 m/min, 0.5–5,000 ft/min, 6–60,000 in/min |
| Length Measurement |
0–99,999 (m / ft / in) |
| Accuracy (all modes) |
±0.02 % + 1 digit |
| Target Distance (non‑contact) |
50–500 mm |
| Data Storage |
Up to 10 groups |
| Statistical Readings |
MAX, MIN, AVG, Last reading |
| Display |
Rotatable LCD with backlight |
| Bluetooth App Support |
Yes (supports iENV/UTienv app) |
| Auto Power-Off |
After ~15 minutes inactivity |
| Drop Protection |
Up to 1 m |
| Operating Temperature/Humidity |
0 °C to 50 °C; ≤ 80 % RH |
| Storage Temperature/Humidity |
–20 °C to 60 °C; ≤ 80 % RH |
| Power Supply |
3 × AAA batteries (1.5 V) |
| Display Refresh Rate |
~1 s (above 60 RPM) up to ~60 s (at very low RPM) |
| Weight (without batteries) |
Approx. 181 g |
| Dimensions (L × W × H) |
176 × 63 × 38 mm |
| Maintenance & Safety Standards |
Electrical safety to EN IEC 61326, laser to IEC 60825‑1, EN 50689 |
