TIPS: First, set the parameter. Second, before you press the START button, please make sure that the cap is pressed tightly. You can not loosen the cap until the machine starts working and the indicator of vacuum meter starts move as well. Otherwise, the following conditions may occur: not a vacuum condition, overheat of the heating wire leads to heat-resistance fiber smoke and burn up. Package Content 1 X DIGITAL VACUUM PACKING MACHINE.
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