1. Automatic lock 2. Power:700W; 3. Vacu degree :>-27.5'' Hg/-931mbar 4. Dual pump,high vacuum pressure Commercial vacuum food sealer with CE/EMC/LVD/ERP/ROHS1.Spray metal paint on both stainless steel housing and plastic parts surface,make the machine more durable,fashion and high end 2. Automatic lock,manual lock or unlock is no need.3. Big power,very short heating time(only 2-3 seconds) 4. ...