The NightRide Thermal LLC Sentinel Stealth 640 is a high-resolution vehicle-mounted thermal imaging camera that operates directly off 12–16 VDC vehicle power, meaning no internal batteries are required or included. It features a compact outer footprint measuring 5” × 5” × 2”, an ultra-lightweight design weighing 0.5 lbs., and a wide 45° horizontal field of view powered by a high-resolution 640 x 512 sensor.