Frequency: 8.2Mhz Dimension: 48mm* 42mm ( 1.89" x1.65" ) Detection: 1.20m-1.50m ( 3.94Â ¡ Â ¯ - 4.92Â ¡ Â ¯ ) Color: Black/ Gray/ White or customize Lock: Three balls clutch, standard/ super....