SG550M-8mHD
Appendix
Ⅱ
: Technical Specifications
Page 24
Appendix I: PIR Detection Zone
Figure4 shows Bolymedia’s 4 kinds of detection
range at different detection angles.
Figure 4 Different detection range
The PIR detection angle (
α
) is just smaller than
the field of view angle (
β
). The advantage of this
design is to avoid empty pictures and get most, if
not all, motions.
Figure 5 Detection angle VS F.O.V angle
