Guide Thermal 1.9x25mm 25mk NETD Thermal Monocular w/ 800x600 Display & 400x300 12um Sensor TE421

The Guide USA / Sensmart TE421 (TrackIR Series Upgrade) is a compact, highly portable handheld thermal imaging monocular engineered for fast-paced wildlife tracking, scouting, and security patrol. Built around a 400x300 VOx infrared sensor with a sensitive ≤25mK NETD, it processes clear thermal images and cuts through dense fog or foliage to locate targets out to a 1,100-yard detection range. This pocket-sized device coordinates a smooth 50 Hz refresh rate, a manual-focus 25mm F1.1 objective lens, and a crisp 800x600 LCOS display to deliver comfortable, low-fatigue scanning during extended nighttime operations. Guide Thermal 1.9x25mm 25mk NETD Thermal Monocular w/ 800x600 Display & 400x300 12um Sensor TE421