ATN ThOR-640 2.5X-20X (30Hz) product image

ATN ThOR-640 2.5X-20X (30Hz)

The THOR-640 2.5X-20X (30HZ) is a thermal scope made by ATN and is part of the ThOR series.


The ThOR-640 2.5X-20X (30Hz) houses a clear 50mm objective lens collecting thermal radiation. The default field of view on this thermal scope measures 12.5 by 9.7 degrees. It has a 20 times digital zoom to enlarge (parts of) the image. It has an eye relief distance of 65mm.

Behind the lens of the ThOR-640 2.5X-20X (30Hz) you can find the (uncooled) 640 x 512 pixel microbolometer refreshing the image at 30Hz. The NETD of this thermal scope is <50mK and it's operating within the 7µm - 14µm infrared wavelengths.

The measurements of this thermal scope read 203 x 69 x 73mm (l/w/h) and the scale reads 850 grams. This device is rated Waterproof / Dustproof. It's protected against dust, shocks, water (splashes) and submersion under water.

The ThOR-640 2.5X-20X (30Hz) can be utilized in surveillance, hunting trips, law enforcement (police, border patrol etc.) and tactical operations.

Lens50 mm
Diopter adjustment-6 to +2
Eye relief distance65 mm
Optical zoom2.5 x
Digital zoom20 x
FOV (h/v)12.5 ° / 9.7 °
Thermal typeUncooled
Sensor resolution (h/v)640 pixels / 512 pixels
Sensitivity50 mK
Spectral range7 µm / 14 µm
Display resolution (h/v)800 pixels / 600 pixels
Refresh rate30 Hz
Image polarityWhite hot / Black hot / Multiple Color Mode
Output screen colorFull color
Startup time3 seconds
Reticle detailsMultiple Reticles to Choose From
Rail detailsMIL-STD 1913 Picatinny
Package contentsInstruction Manual, 3 batteries CR123A type, Mil-Spec Hard Case, Warranty card, Lens Tissue
Dimensions (l/w/h)203 mm / 69 mm / 73 mm
Weight850 g
Number of batteries3
Battery life8 hours
Environmental ratingWaterproof / Dustproof
Law enforcement
Search & rescue
Fire fighting


ATN ThOR Series (30 mm lens)
ATN ThOR Series (30 mm lens)
ATN ThOR Series (30 mm lens)
ATN ThOR Series (30 mm lens)
ATN ThOR Series (30 mm lens)
ATN ThOR Series (30 mm lens)


Part of ThOR series