Laserplane Limited - Topcon's RL-H5A Rotating lasers are available for hire, purchase & service / calibration from Laserplane. With long range detection, slope features, robust and IP66 weatherproof build, rechargeable battery pack
i.ytimg.com/vi/BBZRQAOP7mc/maxresdefault.jpg
Topcon RL-H5A Horizontal Self-Leveling Rotary Laser Level with LS-80X Receiver 1021200-50 - The Home Depot