Spectrex 20/20MI - Mini Triple IR (IR3) Flame Detector - Manual (Page 19)

Spectrex Inc. - SharpEye TM Mini IR3 Flame Detector Manual – TM 787100, Rev. D April 2011
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3.2 Cone Of Vision
Horizontal: 100°
Vertical: 100°
Figure 4: Horizontal and Vertical Fields of View