Our gently used NOX18.  Sold as is (see the pictures).
 
640X480 12 micron Thermal Core
60 Hz Refresh Rate
18 mm Objective Lens
Includes Helmet Mount Dovetail
 
 
Nox is a small 12-micron 60Hz fully functional thermal weapon sight that can serve double duty as a head-mounted monocular or a scanner. This unique product is proudly designed and built in the USA, using the best commercially available BAE thermal imaging cores and the highest grade optical components.
 
Power Supply Options
Each NOX ships with a standard CR123 battery and a rechargeable 18650 battery (and charger). Depending on ambient temperature, you can expect up to an hour and a half of run time with a standard CR123 battery and from four to seven plus hours on the rechargeable 18650 battery. For the ultimate power solution, Nox can be powered with an external USB battery bank via the provided USB-C cable.