GPI -ZL21R Instruction Manual page 2

Thanks for your trust on our product!
GPI-ZL21R laser plummet is precision surveying instrument. In order to get
maximum use of the features of you new product we recommend that you read
the manual in details.
The laser class of GPI-ZL21R is 2, please
don't stare into beam. At the same time, it is
safe for user to observe laser from eyepiece.
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