SW‑332R Self Leveling Tool Cross Line Level Infrared Leveler Beam Tool for Construction Item Type: Line Level Material: ABS Color: As shown in the picture Model: SW-332R Application: Used in construction, decoration, home improvement, home furnishing, furniture, etc. Battery: 1.5V 4xAA battery (not included) Basic Parameters: 1. Laser Class: Class 2 (IEC/EN60825-1/2014) 2. Laser Wavelength: 635±5 nm 3. Leveling Accuracy: ±3mm/10m 4. Vertical and Horizontal Accuracy: ±3mm/10m 5. Leveling/Compensation Range: 4°±1° 6. Working Distance (Laser Line): 20 meters (100 lx ambient light) 7. Working Time: About 12 hours (all lasers are turned on) 8. Waterproof/Dustproof Grade: IP54 9. Working Temperature Range: -10℃-50℃ 10. Storage Temperature Range: -20℃-70℃ 11. Working Distance with Receiver: >50m