System Sensor Model BEAM1224 is a four-wire conventional reflected beam smoke
detector, which is uniquely suited for protecting open areas with high ceilings,
where other methods of smoke detection are difficult to install and maintain. It
is to be used with UL Listed compatible control panels only. An advantage of
this single-ended reflective design is that it is much easier to install than
the dual-ended projected beam detectors. Alignment is quickly accomplished via
an optical sight and a two-digit signal strength meter incorporated into the
product. Another advantage of the BEAM1224 is that it is listed for operation in
temperatures ranging from -22°F to 131°F. This means it can be used in open
areas to provide early warning in environments where temperature extremes may
exceed the capability of other types of smoke detectors.