Dewalt Linear laser (3 x 360°, 10.8V, 2Ah, manual mode from 4° (flashing mode), working range: 30m (60m with receiver), accuracy: +/-3mm@10m, IP65) green : Amazon.com.be: Tools & Home Improvement
[DeWALT] DCE089D1G Self Levelling Cross Line Laser 10.8V Green Beam x3 360° | eBay