Inductive proximity sensor

I want to detect the presence of rebars in prestressed concrete. For this, is inductive proximity sensor useful? below I have given link of one sensor. If any other sensor is useful to accomplish my purpose then please suggest me.

http://uk.farnell.com/turck/bi30u-ck40-ap6x2-h1141/sensor-30mm-pnp-connector/dp/1908311