Mercedes Benz repair: Brakes on 500sl ,,1994, number search results, brake caliper

Question
Are the sensors in the brake caliper pads removable, and do you reinstall them in the new pads or does the new pad's come with the sensors in them ready to be wired up.

Answer
For the cost of new ones it makes sense to buy new ones every time.

PART NUMBER SEARCH RESULTS WITH PRICES
Vehicle 1994 Mercedes Benz SL 500
Part: Brake Pad Sensor
 Note:  Front : rear
N1030-26105 Brake Pad Sensor Pex IN STOCK $1.96  
http://catalog.eautopartscatalog.com/mercedesshop/sophio/wizard.jsp?partner=merc...