This laser level works great for measuring elevations on ground control points that will give a much better vertical accuracy when the mapping mission is processed.
I was amazed at how far the laser level reached. There was a 0.04' flucuation at 270' range which I averaged.
This a great addition to the Google Earth and Mavic Mini post that I ran a while back.
I also wrote a book on using the low cost Mavic Mini and Google Earth to do GIS mapping.
With the low cost Mavic Mini and this Laser Level package it is now possible to get very accurate GIS mapping that fits everyone's pocket book for around $1000.