Instruction manual
CS Instruments 
- 6 - 
Operation of instrument 
Figure A: LD 300 operation diagram
after 2 sec all LCD 
segments are on 
LD 300 is switched off 
- LD 300 is switched on 
- LCD all segments on for 2 sec. 
- Laser off 
Press 
Press 
Press 
after 30 minutes the 
appliance switches off 
The user can adjust the sensibility by  
the volume regulator 
- Switch LASER on/off 
- “LASER“ symbol if LASER active 










