Guide TK631 Thermal Imaging Monocular

The Guide TK631 is a well-balanced thermal monocular featuring a high-resolution 640 × 480 VOx sensor (12 µm pixel pitch, NETD ≤ 30 mK) that outputs clear, high-contrast imagery to a vibrant 0.4″ FLCOS display (1280 × 960 resolution, 50 Hz). Packaged in a rugged, IP66-rated body, it's built to endure outdoor use and harsh conditions.

With its 35 mm f/1.0 lens offering approximately 22 m × 16 m field of view at 100 m, the TK631 is optimized for medium‑distance observation. It provides 2× optical zoom and up to 8× digital zoom via the eyepiece for precise targeting.

About the Guide TK Series

This series combines advanced thermal imaging performance with intuitive features like smooth digital zoom, scene presets, Picture‑in‑Picture (PIP), Wi‑Fi streaming via the TargetIR app, laser pointer, and built-in illuminator—enabling seamless navigation across variable field conditions.

Key Features

• 640 × 480 VOx sensor, 12 µm pixel; NETD ≤ 30 mK
• 35 mm f/1.0 lens—~22 m × 16 m FOV @ 100 m
• 2× optical zoom; up to 8× digital zoom
• Display: 0.4″ FLCOS at 1280 × 960 resolution, 50 Hz
• Color palettes: White Hot, Black Hot, Red Hot, Iron Hot, Blue Hot, Green Hot (adjustable)
• Features: PIP, hotspot tracking, image stabilization, customizable scene modes
• Laser pointer (up to 200 m) & built-in illuminator for low-light use
• Wi‑Fi streaming via TargetIR app
• Battery: Dual 18650; approx. 4.5 h runtime
• Durability: IP66-rated housing; shock/fog resistant; weight ~560 g; dimensions ~214 × 65 × 71 mm

About Guide Sensmart

Guide Sensmart (part of Guide Infrared) is a global provider of thermal imaging technologies. With over 20 years of experience and distribution in 70+ countries, Guide is renowned for making durable, feature-rich optics designed for real-world outdoor use.

What’s in the Box

• Guide TK631 Thermal Monocular
• USB‑C charging cable & power adapter
• Micro‑HDMI cable for video out
• Lens cap, wrist strap, carrying case
• Quick Start Guide & Warranty Card

Warranty

The TK631 comes with a 3-year manufacturer warranty, supported worldwide through Guide’s network.