First impressions matter. The appearance of the grounds of your facility, campus or municipality send a strong message. With a little help from the Advance RS 501, you can ensure that the message is positive. The Advance RS 501 all season wet/dry sweeper stands alone in its category. Equal parts power and agility, the RS 501 not only gets to places other outdoor sweepers can´t, it picks up debris that the others either miss or simply can´t handle.