A patented magnetic coupling isolates the switch compartment,
completely sealing the switch(es) and/or transmitter from surrounding
atmosphere. A flexible bearing on the lower magnet accommodates minor
mounting misalignments, speeding installation. Two adjustable windows
(56?range ± 90?fixed), in the standard stainless steel visual
indicator show OPEN, CLOSED and ?(0-90) in 5?increments on the inner
drum. The inner drum is also adjustable in increments of 15?of the
range of 360?
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