ERA Invincible Instruction Manual page 23

3. Avoid facing towards glass windows or doors
Detection sensitivity can be affected by
movement outside of a window/glass
door, etc., that falls within the detection
range, such as a flow of traffic (vehicles,
people, etc).
4. Avoid facing or positioning close to a heat source
This includes: heat extraction units,
heaters, air conditioning units,
microwave oven, refrigerator, freezer,
etc., all of which may cause false
triggering of the Sensor.
5. Avoid facing towards moving items
Movement such as that of curtains
where there may be a draft from an
open window could result in false
triggering a Sensor.
if there are two sensors covering the
same detection area, adjust the
locations to prevent cross-interference.
17