Specifications: 1) Dimensions: 48 x 42mm (1.89 x 1.65) 2) Frequency: 8.2MHz 3) Detection range: 1.22 - 1.37m ( 4.8 - 5.4\'\') 4) Colors: black, gray, white or custom 5) Lock: 3-ball clutch, standard / super Inner packing: PP bag Outer packing: Standard export carton, absolute English marks 1,000pcs/carton Carton volume: 0.029cbm G.W.: 11.3kg