<div>Laser Class: Class II,&lt;1mW Laser</div><div>Wavelength: 520 nm ± 5 nm for Green Beam</div><div>Leveling Accuracy: ±1.5mm/5m</div><div>Leveling/Compensation: ±4°</div><div>Leveling Time: 5 seconds</div><div>Working Range: Radius 5m(indoor)</div><div>Operating Time: 7 Hours for Green Beam</div><div>Power Source: 2×''AA''</div><div>Operation Temperature Range: -10℃~＋45℃</div><div>Storage Temperature Range:</div><div>-10℃~＋45℃</div><div>Weight: 0.23kg</div>