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The HEAT / VIPER kit pairs a 256 x 192 thermal monocular with a digital night vision monocular on an included dovetail bridge, so one eye scans for heat and the other reads detail. The thermal side has 25 mK sensitivity and a 60 Hz display; the VIPER offers true 1x, a 45-degree field of view and 25 ms latency, with built-in 850 nm IR. Both run head mounted, handheld or bridged, and charge over USB-C with up to 5 hours per charge. It is a cheaper way into dual thermal-plus-digital scanning than analog tube setups, but owners report weak night vision without IR, units that arrived dead, and a bridge that fits smaller heads poorly.
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Availability unknownSold by uncletoads_humble_abode (99.3% positive, 849 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.
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Lowest price we've seen: $649.95 on Nov 9 at Night Operators. Tracked across 1 store since Nov 9.
Owners like the thermal detection and the wide, low-latency night vision image, and many call the build solid. Complaints center on weak night vision without IR, awkward bridge fit, and units that arrived not working.
This kit pairs two monoculars: the HEAT thermal monocular and the VIPER digital night vision monocular. Each works on its own, or both can be mounted side by side on the included bridge. Thermal detects heat, such as an animal in a treeline, a person behind light brush, or a warm engine. Digital night vision shows detail and context.
The kit can be used handheld, helmet mounted, or bridged. The bridge included in the kit holds the HEAT and VIPER together for head-mounted use.
The HEAT can also be paired with a PVS-14 on a simple rail bridge held by two screws. This is not a true dual dovetail bridge.
