Liquid Inspection systems are one of the security inspection device in security checking total solution. Hand Held Liquid Detector, desk top liquid detectors and x-ray screening system for liquid are available. Hand held and desk top liquid detection systems are fast checking tool to scan the liquid from the visitors lile the soft drinks or water bottle, and x-ray liquid inspection system is a more professional liquid detection system usually used in airports. The X-ray scanner use CT (computer tomographer ) technology which leads to a high accuracy in liquid detection process.