This device with image intesifier tube Gen.2+ CGTI has resolution 45-54 lp/mm , S/N ratio min. 14, FOM max. 1 000, Photocathode sensitivity 300-350 µA/lum, lifetime is till 10 000 hours. Device is shipped without data sheet.

Representing the latest advancement in Night Vision Optics, the ATN PS40 gives your daytime scope Night Vision capability in a matter of seconds. The ATN PS40 mounts in front of a Daytime Scope to enable nighttime operation. No shift of impact, no need to rezero nor change of eye relief occurs. The ATN PS40 uses the latest in image intensifier tube technology for outstanding resolution and performance.
Precision optical alignment is essential for a front sight system to work properly. This is why each ATN PS40 is individually tested and aligned on an optical scale by our engineers to provide perfect alignment. The ATN PS40 is one of the most compact and lightweight NV systems in its class, at only 840 grams.

Features:

Easily changes daytime scope to Night Vision
Mounts in front of the daytime scope, no re-zeroing required
Multi-coated all-glass optics
Fast catadioptic front lens system
Large 40 mm output window
Lightweight and rugged
Comes with Quick Release Mount
Optional 7/8” weaver mount
Optional Scope Mounting System attaches the PS40 unit to the objective of the day scope (47-50; 56-58.7 mm diameter)

Specifications:

Total Darkness IR System	Yes
"SMART" Technology	No
IIT Generation	2 CGTI
Resolution	45-54 lp/mm
Magnification	1x
Lens System	F1:1.44, 80mm
Proshield Lens Coating	Yes
FOV	12°
Exit Pupil	40 mm
Range of Focus	10 m to infinity
Diopter Adjustment	No
Controls	Direct
Remote Control	Yes
Automatic Brightness Control	Yes
Bright Light Cut-off	Yes
Infrared Illuminator	Detachable IR450 (optional)
IR Indicator	Yes
Low Battery Indicator	Yes
Power Supply	1x1.5 V AA type battery or 1x3 V CR123A type battery
Battery Life	60 hours (3 V) 30 hours (1.5 V)
Reticle System	No
Windage & Elewation Adjustment	No
Environmental Rating	Waterproof
MIL-STD-810	Yes
Operating Temperature	-20 to +50 °C
Storage Temperature	-50 to +50 °C
Dimensions	177x85x83 mm 7.0x3.4x3.3”
Weight	0.84 kg / 1.85 lbs