Atek electronic Stagehand RM200 - Manual (Page 25)

Maintenance
Clean with a dry soft cloth only. Do not use water, chemical solvents, or abrasive
materials.
For use in home and office environments only. Do not submerge in liquids or expose
to extreme temperatures, high humidity, high pressure, physical shock, electrostatic
charges, or intense electromagnetic radiation.
Except for the user-replaceable battery, this product contains no user serviceable
parts. Opening the enclosure will void the warranty. Contact Atek, Inc. for support and
warranty service.
Although the battery lasts for many hours of normal operation, it will weaken over time.
If the laser beam, LED illumination light, or RF signal strength is weak or intermittent,
replace the battery with a CR2032 coin cell battery conveniently available from Radio
Shack and other stores that sell a wide variety of batteries.
To replace the battery, remove the cover on the back per the illustration below.
The printed text on the new battery should be face up.
Make sure the battery compartment cover locks shut after you install the new battery.
Maintenance
Stagehand User’s Manual, page 24