An acoustically coupled frequency selective radio frequency device is provided. A PC 11 can obtain the time information of a provider side server 44 at the timing of transmitting measuring information to the provider side server 44 to synchronize therewith, and a relay key 12 can obtain the time information from the PC 11 to synchronize therewith. The six-axis robotic arm positions the nozzles and their sprays substantially normal to each surface being cleaned or deburred. Upon receiving a request to run the application, the generic key identifier is transformed back into the original web service key prior to calling an associated web service.