Powerful vacuum system: our vacuum sealer is equipped with a powerful 120 W motor that produces a negative pressure of up to 75 kPa. Unlike conventional vacuum machines, it has an integrated high-pressure pump and a pressure sensor. This vacuum device automatically detects the residual air in the bag and pumps until the set vacuum degree is reached. Whether a large steak or a small portion of nuts with this vacuum sealer the oxygen is completely removed, the shelf life of your food is extended