What was found
CREW REPORTED, DECLARED EMERGENCY FOR BAGGAGE AREA SMOKE WARNING IN FLIGHT, DIVERTED TO RDU, FIRE EXTINGUISHER BLOWN. MAINTENANCE DISPATCHED TO AIRCRAFT, INSPECTED AND FOUND NO EVIDENCE OF SMOKE. PLACED BAGGAGE SMOKE DETECTOR AND BAGGAGE FIRE EXTINGUISHER ON MEL. REMOVED AND REPLACED NR 1 AND 2 BAGGAGE SMOKE DETECTORS (P/N: 473597-13) OPS.CHECKED GOOD IAW EMB145 MM 26-23-00 AND REMOVED AND REPLACED NR 1 AND 2 FIRE BOTTLES FOR BAGGAGE COMPARTMENT (P/N:33700027-1) IAW EMB145 MM 26-23-01. BOTH MEL'S CLEARED. AIRCRAFT RETURNED TO SERVICE.