Security metal detectors are only useful for the screening of any metallic object in security zones. Very Low Frequency or VLF technology is used in many common security metal detectors. Advanced security metal detectors use low radiation x-rays for screening. Security metal detectors are widely-used in airport security checkpoints, prison security, courthouse security and government buildings. Security metal detectors also protect public, schools, special attractions and conferences.

Security metal detectors are usually divided into two. They’re portable security metal detectors and walk through metal detectors. Super scanner is often a portable security metal detector utilised by security and police officers professionals. Super scanner detects medium sized pistols, knives and razor blades. The reduction switch in a super scanner is utilized to lower sensitivity interference. Additionally, it consists of large scan surface and optional holder. Tactical portable detectors tend to be advanced and need no adjustment. They detect stainless ferrous and non-ferrous weapons. The characteristics include waterproof, slip free handle and high impact plastic withstands.

Portable hand metal security detectors are utilized to detect weapons and other small bits of metal carried by people. They also check baggage and fabric both for magnetic and non magnetic fields. The functions include reliability, sensitivity and long battery life.

Walk-through security metal detectors depend on different technologies. Security metal detectors with technology provide enhanced target detection coverage. These are generally widely used in airport security. Micro processor based security metal detectors can automatically eliminate electrical interference with x-ray devices. Heavyweight metal detectors are utilized in prisons. They can detect a number of weapons.