Pentax DS2 - Manual (Page 210)

Information on disposal for users
1. In the European Union
If your product is marked with this symbol, it means that used
electrical/electronic products should not be mixed with general
household waste. There exists a separate collection system for
these products.
Used electric/electronic equipment must be treated separately
and in accordance with legislation that requires proper
treatment, recovery and recycling of these products.
Following the implementation by member states, private
households within the EU states may return their used
electrical/electronic equipments to designated collection
facilities free of charge*. In some countries your local retailer
may also take back your old product free of charge if you
purchase a similar new one.
*Please contact your local authority for further details.
By disposing of this product correctly you will help ensure that
the waste undergoes the necessary treatment, recovery and
recycling and thus prevent potential negative effects on the
environment and human health which could otherwise arise
due to inappropriate waste handling.
2. In other countries outside the EU
If you wish to discard this product, please contact your local
authorities and ask for the correct method of disposal.
For Switzerland: Used electrical/electronic equipment can be
returned free of charge to the dealer, even when you don't
purchase a new product. Further collection facilities are listed
on the home page of www.swico.ch or www.sens.ch.