Bosch cross line laser UniversalLevel 3 with tripod (3 laser lines incl. vertical line at 90° angle for an additional laser cross on the ceiling and bottom plumb point for precise alignments) :
Bosch BT 250 Professional Building Tripods for Laser Levels - 0 601 096 A00 0601096A00 | Cromwell Tools
Bosch GRL400H Horizontal Laser Level Kit Including LR1 Receiver & BT152 Tripod Staff - Ray Grahams DIY Store
Bosch Quigo Plus Cross Line Laser with Tripod | Axminster Tools