Description The Archer TMQ-20 houses a clear 20mm f /1 objective lens collecting thermal radiation. The default field of view on this thermal monocular measures 17 by 13 degrees. It has an eye relief distance of 50mm. Behind the lens of the Archer TMQ 20 you can find the (uncooled, 17 micrometer) 336 x 256 pixel microbolometer refreshing the image at 30Hz. The NETD of this thermal monocular is <30mK and it's operating within the 7.5µm - 13.5µm infrared wavelengths. The measurements of this thermal monocular read 110 x 65 x 60mm (l/w/h) and the weight scales at 270 grams. This device is rated IP67. It's protected against dust, shocks and water (splashes). It handles temperatures between -30°C and 55°C. Features
2x, 4x digital zoom
Available in 336 x 256 (2x zoom) / 640 x 512 settings (1x zoom)
Change sensitivity settings
Multiple color palettes
Manual sensor calibration
Optional external power supply
Analog video output
336 x 256 resolution in "2x zoom" mode (which is 1.2x actual zoom). Standard boot up goes to normal 1x zoom (which is actually .6x zoom), but runs at 640 x 512 resolution. The bootup time is 3 seconds and you must keep the lens cover on when it is booting or you will see a ghost image of the image pictured at bootup. So, on my usual bootup I will hit the forward arrow button once to go to 1.2x zoom and the hold the forward button once to reset the refresh core. Then remove the lens cover. You may need to replace the cover and reset refresh core during use, if the image locks or gives artifacts/static/ghost images. There is a light dark spot on the far left side of the picture that is only visible on 640x512 mode. When zoomed in to 336x256 mode it is not shown. The corners on 640x512 mode also have trouble adjusting to low level contrasts. Other than that this unit works well. Includes thermal monocular with lens cover and ATN universal headset, with attachment mount system. I have also included some images of my cat so that you can compare to my other listing (AGM Rattler TS25-384 - www.ebay.com/itm/195931918106). Unfortunately I had to use my cellphone camera to the objective lens for this device (Archer) where the AGM Rattler has a save to device function, so no cell phone camera lighting issues. NO INTERNATIONAL SALES. NO RETURNS OR EXCHANGES.