ZLZX-2101LCD metal detector is waterproof ,uo to 24 detecting zones,LED light on ... door panel,LCD screen and remote controlle ALK THROUGH METAL DETECTOR MODEL:ZLZX-2101 LCD (6-18 / 8-24 zones) Technical parameterElectric ... functions, comprehensive control of security doors working conditionApplicationWalk through metal detector ZLZX-2101LCD is popular used in Airport, banks, Embassies, Jail ...