| Model | GP-538LR |
| Laser Beam | 4V4H1D8P |
| Laser Wavelength | 100mw 638nm for lines, 650nm for DP |
| IP Grade | IP-54 |
| Laser Class | Class 2M for Lines / Class 3R for points |
| Accuracy | ±1mm/10m |
| Leveling Range | ±3.5° |
| Working Range | Dia. 200m (W/Detector) |
| Power Supply | Li-ion(with power capacity LED) |
| Working Temperature | -10℃~+50℃ |
| Size | Φ108x200mm |
| Weight | 1.3kg(with Batery) |