Unit
Name
|
NVB-61 1x
|
NVB-61 3X
|
Image intensifier
tube classification
|
Gen
1+
|
Gen 1+
|
Magnification
|
1x
|
2x
|
Lens
diameter
|
22mm
|
42mm
|
Field of
view
|
44º
|
15º
|
Resolution
|
30lp/mm
|
32-36lp/mm
|
Focus
range
|
1
yard to
inf.
|
5
yard to
inf.
|
Eye
relief
|
10mm
|
12mm
|
Diopter
adjustment
|
±
1.5
|
±
4
|
Detection
distance
|
up
to 150 yards
(approx.)
|
up to 250 yards
(approx.)
|
Power
supply
|
CR2
(Lithium)
|
CR2
(Lithium)
|
Estimated battery
life (w/out IR)
|
up
to 30 hours (approx.)
|
up
to 30 hours (approx.)
|
Operating
temperature
|
-22°F to +140°F
|
-22°F to +140°F
|
Dimensions
|
5.6”(L) x 4.6”(W) x 2.1” (H)
inch
|
7.1” (L) x 4.6”(W) x 2.1” (H)
inch
|
Weight
|
17.6oz
|
33oz
|