This is the 1687th most frequent Japanese word.
防犯
Crime prevention.
防犯 is used as a modifier for the noun カメラ, indicating that the cameras are for the purpose of crime prevention.
防犯カメラを設置することで、犯罪を防ぐことができます。
By installing security cameras, we can prevent crimes.
防犯 modifies ブザー, specifying that the buzzer serves the purpose of security and crime prevention.
この防犯ブザーは非常時に音を出して助けを求められます。
This security alarm can emit sound during emergencies to call for help.
防犯 acts as part of the compound 防犯対策, directly indicating actions or measures related to crime prevention.