Specification
Model	OHB-Y
Magnification	1X
Field of view	40°
Lens system	26.8mm F/1.2
Focuse range	0.25m to infinitely
Eye relief distance	25mm
Diopter	+5，-4
Auto to control brightness	Yes
IR light	built-in
Low battery and infrared indicator	built-in
Dimension	160x150x75mm
Weight	510g
Power supply	2 * CR123
Working hour (IR off)	40h
Image Intensifier Tube
IIT Generation	Gen3	Gen2+
Photocathode type	18mm GsAs	18mm S-25
Photocathode sentivie uA/lm	≥1800	600-900
Resolution lp/mm	60-72/65-74	48-58/57-64/60-72
Luminous gain fl/fcd	45000-65000	19000-30000
Signal-to-noise	20~25	18~23
FOM	≥1800	1150-1600
Lifespan (h)	12000	10000
Warranty (Year)	1
Effective Distance (m) (human)
Detection Distance (Environment illumition condition)
10-3 lux	300	220
10-4 lux	250	140
Recognition Distance (Environment illumination condition)
10-3 lux	225	175
10-4 lux	150	100
Environment Data
Operating temperature °C	-40° to +50°
Storage temperature °C	-50° to +75°
Waterproof	IP67 (optional)
Humidity %	98%