In Singapore, the need for enhanced building security has been increasingly growing. Alongside with CCTV surveillance security systems, turnstiles and door access control systems, another vital and effective component of security check systems are walk-through metal detectors and handheld metal detectors. Security check systems functioned as a primary form of defence and deterrence against potential perpetrators from entering the buildings and are usually installed at lobbies of office buildings, entry points for mass events such as stadiums and convention halls and area of interest such as MRT stations.