The Monocle performs well in low light and in closed spaces with the provided IR light. Operation is simple, one press of the button and the unit comes on, a second press and the IR light comes on and a third and both shut off. The head mount functions, with the flexibility to mount in front of either eye and flip the unit so the button is in your preferred position.
I had 2 initial issues, the first; the unit won't mount to a 'standard' tripod as the mounts aren't threaded. The second issue was with the battery compartment, when using rechargeable batteries, RCR123a, the batteries won't make contact when the cap is closed tight.
A word of warning; the case is held together by screwing the front lens to the image sensor, adjusting the focus can, and did, open the case.
Some accessories would be nice, such as different eye piece and tripod mount, on the Armasight website it's impossible to know what would work with this model.
Pros: Great features and usability
Cons: Quality and support
This review was written in the old system and had content requirements that are different than reviews written today.