STONEX R20 User Manual

Stonex R20 – User Manual 6
2. Precautions for safety
2.1. Laser damage
The instrument uses a visible red laser for distance measuring. The laser is emitted from the center of telescope
objective when measuring or laser pointer is turned on.
The instrument's laser plummet uses a visible red laser to indicate the position of the vertical axis. The laser is
emitted from the bottom of the instrument along the center axis during leveling and centering operations.
In accordance with the state of the international standard IEC 60825-1(2014-05), the product is classified as
different Laser class on different working mode.
Working Mode
Laser Class
Distance measuring with reflector prism and tape
Class 1
Distance measuring without reflector
Class 3R
Laser plummet
Class 2
Direct laser beams can cause eye discomfort, temporary blindness and residual images. Prolonged exposure to laser
beams can cause permanent damage to the eyes.
• Do not look directly at the laser beam at any time, and do not use optical equipment such as binoculars
to view the laser beam.
• It is prohibited to direct a laser beam at another person.
• Do not stare at the spot of laser for a long time at close range.
• Avoid direct the laser at any highly reflective object that is not a reflector prism or tape, such as windows,
mirrors, traffic signs, etc.
• Turn off the pointer and plummet laser as much as possible when not working on distance measuring or
centering.

STONEX R20 Specifications

General

Brand	STONEX
Model	R20
Category	Measuring Instruments
Language	English