Hidden Readers

I am designing an access control system, and the interior architect has a requirement that I have not come across before: for aesthetical reasons the architect wants readers (contactless, iClass) which are "hidden" in the wall next to the door. The readers shall be ducked in the wall and be flush-covered with some aesthetical appealing material which does not disturb or obstruct the signal...

*** **** *** ******. **** ****** **** ********** **** **** solution? **** *** *** *******, *** **** ********* ******* *** covering *** ******?
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* ***** ** ***** ** ********* *** *** **** ***** that ***'* **** ** *** ******** ******** *** **** **** durability.

* **** **** **** **** ************. ** *** **** ****, not ******, ******, ** *** **** ****** **** ******. ** one ********, *** ****** *** ******* **** ******, *** ** another ** *** ********* ****** ****** ** *******. ** *** second ****, * *** ****** *** *********** **** *** ***** to ******** ***** ** ******* *****.

*** *** ******* ****** ********, **** **** *** ******* ********* beforehand, *** **** * **** *** ****** *******. **** ***-******** materials ****** ****, **** ** **** ******** ** *******, *** I ***** *** ******* ***** ** ****** ** ** **** range. **** * ***** ** ******* ** ***** ** ********* a ********** ******** ***** ** *** ***** ** ******'* **** range **** * ******** ******. ** *******'* *****, **** ********** of ***** ** ******* ***** ** ********* *** **** ** avoid *********, *** **** ** *** *** ***** ** ***** as ******** ** *** ****** ** ****** * ********** ****. I ***** ***** ****** **** *** *** ****** ** **** in **** ******** - ***** **** *****.

* **** *** ******** ** *** **** ***** ********** ********* that ** ******* *** ********* **** ******* ** *** *****. Here *** * *** ***********:

- ** ****** **** *********, *** ********** **** ** **** some **** ** ********* ** *** **** ** **** ***** know ***** ** ******* ***** ****. ******** ***** ****** ** locate * ****** ******* **** **** ** ********* ** * pathetic *****. * **** **** ******** **** *** *******'* **** successfully **** ** **********, * **** **** **** *** *** of **** * ******* ***.

- *** *** ****** *** **** ******* *********** *** ****** location ** *** ***** *** ******* ** ****** *******. **** people **** ***** ***** ** **** ** ***** *** **** and *** **** **** ******* *** **** **** *** **** is *********. ** **** ***** *** ***** ******* **** ** the ****.

- *** **** ** **** **** ****** ** ********* *** card ******. ** **** *****, ** **** **** ** ******* an ****** ***** ** *** **** **** ****** *** **** reader. ** ***** ***** **** *** *** ********, ** ********* an ****** ***** ***** *** *******, ******** ** ** ***** and ***** *** **** ****** ** *** **** ****** *** wall ****** ** *** ******* ****** ** *** ****. ** the **** **** *** **** ****** ** ********* ** ** fire-rated, ********* ******* ****** *** ** ******, ** *** ****** method **** **** ******** *** ****-********* ** *** ****.

*** ***** *******, * *** ** ********** *** *********** ** readers ******** ********.

**** ***** ***, * *** * ******* ***** *** ********* insisted **** *** **** ******* ** *********. ** ****** ********** nothing ******* ** *** *****. * *** ****** ***** *** building ****** ***********, ***** ********* ** **** ********** ******** *** readers, *** *** **** ******** **** ******* ****** ***** ** wear ** *** ******** ** *** ******. *** *****'* ******** was ** **** * **" * **" ***** ** ***** Plexiglas ** *** **** ** ******** *** ******** ** *** card ****** *** ** ******* *** ****. ** ** *******, the *** ****** ****** ***** **** *** ******* ******* **** reader ***** **** ******.