Casio DT-X11 Series Hardware Manual page 7

Aiming to a full compliance with the "Restriction of the use of certain Hazardous
Substances in electronic equipment (RoHS)" set mandatory on July 1 2006
The following products have been assembled with devices, components and parts manufactured
using Lead (Pb) free solder.
- DT-X11M10E
- DT-X11M10RC
- DT-X11M30E
- DT-X11M30U
- DT-X11M30RC
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