Operation Manual

SG880MK-8M Appendix I: PIR Detection Zone
Page 20
Appendix I: PIR Detection Zone
Figure 7 shows the detection range in different detection
angle. When the detection angle is 35°, the detection range is
50ft (15m). When the detection angle is 52°, the detection range
is 30ft (9m).
Figure 7 PIR Detection Zone
The PIR detection angle (α) is just barely larger than the
field of view angle (β). The advantage of this design is to avoid
empty pictures and get more available pictures.