Khóa nam châm lực hút Soyal AR-0300M AR-0300M - Electromagnetic Lock (300 lbs) - Khóa nam châm đơn lực hút 300 LBS tương đương 150 kgs - Applicable for glass door, wooden door, fireproof door - Surface magnet : 170 L x 39 W x 21 H (mm) - Strike plate : 130 L x 32 W x 11 H (mm) - Voltage : 12/24 VDC - Gross weight : 1.4 kg