RoboToolz RT-7210-1 Self-Leveling Remote-Control Laser Level is like having a 200 level on the job site. The RT-7210-1 is a remote controlled, wireless, rotary (motor driven), self-leveling system that gives the accuracy of $2000 laser beacon system for much less. The self-leveling system ensures accuracy of ±1/8 @ 100. The RT-7210-1 reduces labor by up to 75% versus conventional leveling methods.