The V-402 is an ideal sealer for maintaining perishable and other food products fresh, and for preventing the oxidation of items such as parts, apparel, chemicals and precision machinery. The state of the machine can be checked by displaying the Maintenance Mode on the LCD screen. Problems can be addressed and resolved at an early stage by checking the blinking areas in the Maintenance Mode and performing any necessary repairs. To set the sealing conditions, the microcomputer controller is used. A simple touch-screen operation is all that is required to set the conditions, with details confirmed on the LCD screen at every step. Up to 10 customized range settings can be registered by the user. Loading a working range program defined on the integrated electronic control panel, allows the user to perform a scheduled job always under the same conditions.