<br>The green laser lines projected by this unit are clearly visible up to 130 feet indoors, and <br>outside with the laser receiver in use the effective range is up to 165 feet. The self-leveling <br>Smart Pendulum System keeps the lines level when in unlocked mode with the unit <br>anchored using the magnetic base. If the unit becomes out of level for any reason, an <br>alarm will indicate that the base and unit should be checked. When the pendulum system <br>is locked, the multifunctional unit can be safely transported or used to project square lines <br>at any desired angle. <br> <br>The coated laser reticle provides improved laser clarity and prevents reflections that could <br>especially affect outdoor use in bright light. The 520nm wavelength lasers are accurate to <br>1/16 inch at 30 feet, providing for true and level lines throughout all projects. <br> <br>The laser comes with two long-lasting batteries and a charger that includes a USB charging <br>port for convenient charging of other devices. <br> <br>This unit provides the same functionality of other 3x360 degree units at about half the cost. <br>The manufacturer provides a 5-year warranty on all the parts of this laser unit. <br> <br><b>Specifications:</b> <br>Self-leveling Range: ±4° <br>Accuracy: 1/13in. at 33ft(2mm/10m) <br>Number of Lines & Range: 12 lines, 360°×3 <br>WGR12L Wave Length: 520nm(Green Laser) <br>Laser Safety Class: Laser Power: ≤1mW. CLASS II. <br>Working Range: 65 ft.(20m) or 165 ft.(100m) with detector <br>Power Range: 7.2V-2000mAH/ Li-ion Battery <br>WGR12L Operating Time: 6 Hours <br>Operating Temperature: 14 to 113?(-10? to 45?) <br>Waterproof/ Dust Level: IP54 <br>Dimensions: 5.1×3.5×4.7in.(129x88.5x120mm) <br>Net Weight: 1.21lb./ 0.55kg