... *500mm(d): Workplace environment: -20~+45Alarm: Sound alarm & LED light alarm Alarm volume: high, middle, low Standard: GB15210-2003, CEWarranty ... CharacteristicØ Six mutual over-lapping detecting zones; Simultaneous alarm from multi- zones;Ø Sensitivity adjustable: Each zone ... patterns: High, middle ,Low ) Ø LED light alarm on both door panels, ascertain the layout of metal articles accurately ...