Controlling The Field Of View - Camtraptions PIR V3 Manual

Controlling the Field of View
The detection zone is immediately in front of the white dome lens on the front
of the sensor.
The detection range is around 5m in front of the device but the precise
distance depends on the size of the subject, the sensitivity setting and the
relative temperature differential between the subject and the background.
The detection field of view is around 120 to 150 degrees horizontally. The
detector is most sensitive towards the centre of the detection zone.
It may be necessary to limit the detection area in order to have more control
over the position of the subject relative to the camera. To do this, open out the
flaps on either side of the sensor to limit the sensor's field of view. Tighten the
knurled thumbscrews on the bottom of the device to secure the flaps in
position.
Camtraptions PIR Motion Sensor v3 Manual Page 12