... : 50/60Hz/AC100-240VHumidity: 5%-80%Can OEM or ODM for specially requestEffective range: Up to 15 meters radius to 20 ... .68KGFor Saft & SecurityPetroleum station,Government Building,Military Establishments,Prison,CarFor Public PlacesChurch,Court house,Libraby,Lecture hall,Meeting room,Classroom, Test ...