CEIA THS/PH21 Metal Detection Systems offer detection, construction quality and reliability characteristics that make them the most suitable and effective solution to automatic elimination of metal contaminants. Validation Solutions Available: Calibration Standards; Validation Manuals; Comprehensive Service & Support; Compliance Tools; On-line Production Data Validation. CEIA Metal Detectors are specially engineered so that no manual calibration or tuning is needed. CEIA Metal Detectors have an internal Auto-diagnosis for automatic balancing of the antenna with continuous embedded Self-Calibration control.