Guide TJ660LZ Thermal Imaging Monocular with Laser Rangefinder

The Guide TJ660LZ represents a breakthrough in thermal imaging technology, tailored for users who demand versatility, range, and exceptional image clarity. Built with a high-sensitivity 640 × 512 VOx thermal sensor and advanced 12 µm pixel pitch, this monocular delivers crisp thermal imagery even in challenging weather conditions like fog, rain, or complete darkness. The ultra-low NETD of ≤ 20 mK ensures minute temperature differences are detected, enabling precise observation of distant targets. One of the standout features of the TJ660LZ is its unique dual focal length lens system. Users can seamlessly switch between a wide-angle 20 mm lens and a long-range 60 mm telephoto lens, providing unmatched flexibility in the field. Whether scanning a large open area or zeroing in on a target at a distance, this quick-shift mechanical lens design supports both situational awareness and target identification—without compromising image quality. When paired with the integrated laser rangefinder (LRF), the TJ660LZ becomes a true all-in-one solution for thermal detection and distance measurement. It allows accurate rangefinding up to 1,000 meters, making it ideal for outdoor professionals, wildlife observers, and advanced users who need reliable data fast. The device is equipped with a 0.39″ Full-HD AMOLED display, boasting a resolution of 1920 × 1080 and a refresh rate of 50 Hz for fluid image rendering. Combined with multiple thermal color palettes, Wi‑Fi connectivity (2.4 G/5 G), onboard recording with audio, and 64 GB of internal memory, the TJ660LZ is fully prepared for documentation, live streaming, or post-session review. Power is supplied via two replaceable 18650 batteries, offering up to 10 hours of runtime. The housing is rugged and weatherproof (IP67 rated), ensuring long-term reliability in harsh environments. With intuitive controls and ergonomic design, the TJ660LZ delivers professional-grade functionality in a device that”s surprisingly easy to operate. About the Guide TJ LRF Zoom Series The TJ LRF Zoom series is built for users who need flexible thermal optics without compromise. Every unit combines high-end components, like low NETD sensors and full HD displays, with unique dual-lens systems to accommodate both wide-area surveillance and distant target focus. With the addition of laser rangefinding, video capture, and Wi‑Fi integration, these units offer exceptional value in the premium thermal segment. Designed for those who work or explore in varied terrain and conditions, the series embodies adaptability, durability, and top-tier performance in a handheld form.


Key Features

640 × 512 VOx thermal sensor, 12 µm pixel; NETD ≤ 20 mK Dual focal lengths: 20 mm f/0.9 and 60 mm f/1.1—FOV: ~38 × 31 m / ~13 × 10 m at 100 m Magnification: 1.5×–12× (20 mm) / 4.5×–36× (60 mm) Built-in laser rangefinder: up to 1,000 m 0.39″ AMOLED display (1920×1080 resolution, 50 Hz) Color palettes: White Hot, Black Hot, Red Hot, Green Hot, Iron Red, Blue Hot, Sepia Photo/video recording with audio; 64 GB internal storage Wi‑Fi (2.4 G & 5 G) streaming; USB‑C interface 10-hour battery life on 2× 18650 batteries IP67-rated, –20 °C to +50 °C operating range Weight: ~784 g; Dimensions: 259 × 97 × 66 mm


About Guide Sensmart
Guide Sensmart, a subsidiary of Guide Infrared, is a globally recognized manufacturer of thermal imaging systems. With over two decades of expertise and exports to more than 70 countries, Guide specializes in delivering intelligent, high-quality thermal solutions for professionals, enthusiasts, and outdoor users. Known for innovation and reliability, Guide continues to lead the industry in both performance and accessibility.




General properties

Manufacturer Guide Thermal Monocular Series Guide TJ Zoom Made in China In production since 2024 Warranty 3 years SKU TJ660LZ Optical properties Variable magnification Yes Magnification. 12.00 x Minimal magnification. 1.50 x Maximum magnification. 12.00 x Diopter range -6/+6 dpt Lens diameter. 20.00 mm Field of view... 380.00 m/1000m Field of view (deg.). 21.70 ° Min. field of view... 130.00 m/1000m Max. field of view... 380.00 m/1000m Eye relief. 16.00 mm Lens aperture F 1.1 Range of detection. 1,000.00 m Thermal sensor properties Thermal sensor type VOx Uncooled Thermal sensor resolution 640x512 Thermal sensor pixel count. 0.33 MP Pixel pitch. 12.00 μm NETD. 20.00 mK Refresh Rate. 50.00 Hz Temperature sensitivity. 20.00 mK Display properties Display type AMOLED Screen Resolution 1920x1080 Display pixel count. 2.07 MP Recording properties Image Capture Yes Video recording Yes Video output Yes Rangefinding properties Maximal rangefinder range. 1,000.00 m Measurement increment Meter, Yard Measurement display Internal display Physical properties Length. 259.00 mm Width. 97.00 mm Height. 66.00 mm Weight. 784.00 g Working temperature range -20°C to +50°C Power Supply 18650 Battery life. 10.00 h Color Black Special features Waterproof Yes Fogproof Yes Special features Fogproof, Shockproof, Waterproof Connectivity Wifi Tripod adaptable No Compass No Built-in rangefinder Yes Image stabilizer No Automatic Brightness Control No