Its called the BOT-3000E. It is the only device named for use in the ANSI A326.3 Standard.
If you want to be compliant with OSHA and any other government regulatory agency, then you will need this piece of equipment to test the friction on your floors.
You can buy this to lower your risk of having a slip and fall in your own facility, or perform Slip Testing for other companies or law firms for their slip and fall cases.
Insurance Companies provide discounts on liability insurance coverage for clients that perform regular Slip Testing at their facilities.
It has just been sent to the manufacturer for its annual service and recertification.