MTS Series LX Laser Extensometer - Manual (Page 24)

LX Laser Extensometer Safety 24
Check operation of these safety features by performing the procedure in the
Safety Checkout section.
Laser radiation present inside. Do not remove case.
Customer servicing of the internal components of the laser extensometer is not
recommended. Return unit to factory for service.
Use of controls or adjustments or performance of procedures other than
those specified herein can result in hazardous radiation exposure.
Always follow the instructions contained in the documentation.
CAUTION
CAUTION