- With transverse and longitudinal vials
- Used as level and protractor
- Aluminum frame
- Magnetic bottom
- The sea level is permanently set inside the chip, zero setting is not needed when batteries are replaced
- Buttons: ON/OFF, absolute and incremental measurement, keep the reading, buzzer alarm, unit (mm/m, %, in/ft) conversion, backlight
- The display flips over when the bottom faces up
- Two AAA batteries
- Automatic power off
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| Code | Range | Resolution | Accuracy |
| 4910-600 | 0-360 90°x4) | 0.1°(=1.745mm/m) | 0° & 90°: ±0.1°; others: ° and ±0.2° |
