LFS-01 vacuum pressure switch is applied to detection of both negative and positive pressure, such as the family vacuum cleaner. LFS-01 vacuum pressure switch is provided with solder pin connections and is especially designed for mounting on "Printed Circuit Boards", but can also be provided with different wire leads, terminals and socket. LFS-01 vacuum pressure switch is designed as an economical interface between pressure systems and Printed Circuit Boards with almost no hysteresis.