Guide TK451 Thermal Imaging Monocular

The Guide TK451 is a compact, high-performance monocular designed for detailed thermal imaging in the outdoors. Featuring a 400 × 300 VOx sensor (17 µm pixel pitch; NETD ≤ 30 mK), the device delivers crisp images to a vibrant 0.4″ FLCOS display (1280 × 960 at 50 Hz). Its rugged, IP66-rated housing is built for reliability in the field.

Equipped with a 50 mm f/1.2 manual-focus lens, the TK451 offers a practical field of view of approximately 14 m × 10.5 m at 100 m. It starts with a 3.3× optical zoom and supports up to 4× digital zoom, making fine targeting swift and smooth.

About the Guide TK Series

The TK Series blends solid imaging performance with ergonomics and smart features. It includes seamless zoom functionality with Picture-in-Picture, multiple scene modes, and one-button color palette switching. Plus, smart Wi‑Fi streaming via the TargetIR app and a fog-resistant eyepiece enhance usability in changing environments.

Key Features

• 400 × 300 VOx sensor, 17 µm pixel; NETD ≤ 30 mK
• 50 mm f/1.2 manual-focus lens
• Field of view at 100 m: approx. 14 m × 10.5 m
• Optical zoom: 3.3×; Digital zoom up to 4×
• Display: 0.4″ FLCOS, 1280 × 960 resolution, 50 Hz
• Color palettes: Black Hot, White Hot, Red Hot, Iron Hot, Blue Hot, Green Hot
• Scene modes, smooth zoom, and Picture-in-Picture
• Laser indicator & illuminator for target alignment
• Wi‑Fi streaming via TargetIR app
• Fog-resistant eyepiece, IP66 rugged build, 1 m drop tested
• Battery life: ≥ 5 hours (dual 18650 cells)
• Weight: ~535 g; Size: 214 × 65 × 71 mm

About Guide Sensmart

Guide Sensmart (part of Guide Infrared) leads in thermal imaging innovation, delivering field-ready thermal optics globally with over 20 years of expertise.

What’s in the Box

• Guide TK451 Thermal Monocular
• USB‑C charging cable & power adapter
• Micro‑HDMI cable for live view/output
• Lens cover, wrist strap, and carrying pouch
• Quick Start Guide & Warranty Card

Warranty

The TK451 includes a 3-year manufacturer warranty, supported through Guide’s global service network.