... wood material 5.Anti-theft device em library security gate, em library security system Model: SSLT-EM-9188 NEWDescriptions:* Material: High ... as 3M,Meto, ect.* Microprocessor control technology, high sensitivity with above 98% detection rate, small blind area.* Connect multi ... , strong anti-electronic jamming ability, can also protect products with aluminum foil, foil package. * Meet the ultra-low ...