Vectronix COTI (Clip-On Thermal) Monocular Basic Equipment Kit 12712-3610-07

The COTI excels in extreme darkness and when artificial light is at a minimum. I’m able to detect at ~200yds clearly for varmint sized creatures in open fields. If there is a high discrepancy in temperature — deer in heavy brush or a bird in a tree on a cold night — at 30-50 yds, they really stand out vs NODs alone. When a signal is detected, I can light up the area with IR illumination and positively identify up to ~100 yds with unmagnified NODs. In areas with high levels of artificial light, adjusting to optimize signal to noise is a little tricky and sometimes false positives can occur. For those using this in unknown terrain vs aggressive or hostile threats, I would keep usage to open plains or large interior spaces with minimal backlight. This is an ideal supplement for those patrolling a known area who can dial in settings with minimal adjustment.

Had mine for 3-4 months now with approx. 100 hours on them and I cannot say enough about how well the COTI performs as it was designed! The COTI is a very specific-use thermal device and NOT meant to operate as a Typical Thermal Monocular! The COTI is designed as a NV Overlay Thermal Device providing near fusion capabilities. The COTI is NOT designed nor meant to be a thermal monocular for looking around to hunt etc. The COTI is designed to alert the Operator of a “Threat” by introducing another spectrum to view in the long wave infrared (IR) region wavelengths of 8-14 micrometers, thereby defeating traditional camouflage/concealment efforts. The IR-Spectrum is not normally provided by NV alone, the COTI changes that by integrating an IR overlay. The IR NV overlay works extremely well by quickly alerting the operator of a heat-signature providing an outline of the threat! The only downside is our lovely-regulators cannot seem to allow Civy’s to utilize devices to their full capacity! Vectronix has purposely “tuned-down” the COTI’s capabilities to a paltry 20 degree viewing! The COTI is capable of a much larger viewing zone, just like the E-COTI! Hopefully the full software suite will be available soon in order to release the full power to the COTI! As far as operations I should note that the COTI is Power-Hungry little bitch! You may want to obtain a COTI cable and a Vectronics COTI battery box or a much better alternative is the L3-PVS31 battery box both greatly extends the working hours of the device. The Battery boxes can be renewed with simple AA cells and to note a handy feature on the L3-PVS31 battery box is the IR lights on the box itself so no need for more helmet clutter and a separate IR strobe. So to sum it all up in the patrol or outline mode even with white phosphorous the CORI is astounding at identifying bad dudes which otherwise may escape your NODS!