2
4. Selecting a Location
• Careful positioning of the sensor will be required to ensure optimum
performance. The mounting height for the sensor should be 2.5m.
See diagram A.
• The sensor is more sensitive to movement ACROSS its field of vision than
to movement directly TOWARDS. Therefore position the unit so that the
sensor looks ACROSS the likely approach path.
• Avoid positioning the sensor where there are any sources of heat in the
detection (extractor fans, tumble dryer exhausts etc.). See diagram B.
• Reflective surfaces (i.e. pools of water or white-painted walls)
may cause false activation under extreme conditions.
B
A