What Is A Rotary Laser?

Mike from the shop goes over the basics of a rotary laser as this video intended for people who know nothing about rotary lasers! Mike covers the following topics:
What is a rotary laser: 0:16
Factors to consider when making a purchase: 1:20
What is the difference between a grade laser and rotary laser: 1:42
Products In Video:
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► Rotary Lasers - www.tigersuppl...
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Get in touch:
►www.tigersuppl...
►888-844-3765
►[e-mail]
►@tigersuppliesinc
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About Us:
Tiger Supplies is one of the largest distributors for surveying, construction, and engineering equipment. With experts on staff and a massive selection of products, our trustworthy team is eager to help our clients buy the tools they need to get the job done right. We have a stocked showroom featuring the top brands in today's market and a fully equipped repair center. Call us today or come by our showroom in New Jersey. Thank you for putting your trust in Tiger Supplies.

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typical (indoor) laser levels shoot out a horizontal line without spinning.. so wondering why these spin? My #1 guess would be that the receiver detects the 'pulse'.. #2 accuracy #3 health and safety regarding laser/eyes.. but anyone pls lmk. ty!