Two Batten-mounted PIR occupancy
switches from Danlers are said to be
capable of achieving energy savings
of up to 50%, keeping the payback
period to a minimum.

UK-manufactured, the IP53 rated
controls can switch lighting loads of
up to 10A and can be mounted onto
the end of lighting battens. They
detect the movement of a warm body
within their detection zones (either 5
or 10m variants) and include a
photocell which can be set to
between 100 and 3000 lux. A realtime
photocell status indicates if the
photocell is active or inactive. Its
calibration process can distinguish
between artificial and natural light.