Guide TD420 Thermal Imaging Monocular

The Guide TD420 is a lightweight thermal monocular featuring a 400×300 VOx sensor (12 µm pixel pitch, NETD ≤ 50 mK) and a swift 50 Hz frame rate. It displays crisp thermal imagery on a vibrant 1280×960 FLCOS display, ideal for clear observation in the field :contentReference[oaicite:1]{index=1}.

Equipped with a 25 mm f/1.1 lens, the TD420 delivers a field of view of approximately 18 m × 14 m at 100 m. It offers 2.4× optical and up to 4× digital zoom, and a detection range exceeding 1,000 m for human-sized subjects :contentReference[oaicite:2]{index=2}.

About the Guide TD Gen2 Series

The TD Gen2 line offers rugged performance, intuitive use, and long runtime. These handheld thermal devices support multiple observation modes, Wi‑Fi app connectivity, fast startup (under 2 seconds), Picture-in-Picture zoom, and IP66-rated durability with over 7 hours of battery life :contentReference[oaicite:3]{index=3}.

Key Features

• Thermal sensor: 400×300 VOx, 12 µm pixel pitch; NETD ≤ 50 mK
• Lens: 25 mm f/1.1 with manual focus
• Field of view at 100 m: approx. 18 m × 14 m
• Magnification: ~2.4× optical, 1×/2×/4× digital zoom
• Detection range: over 1,000 m
• Display: 1280×960 FLCOS, 50 Hz refresh
• Color palettes: Black Hot, White Hot, Red Hot, Iron Red, Blue Hot
• Features: Picture-in-Picture zoom, hot-spot tracking, multiple scene modes
• Connectivity: Wi‑Fi streaming and USB‑C interface
• Power: single 18650 battery with ~7 hours runtime
• Housing: IP66 waterproof and shock-resistant
• Weight: ~350 g; Dimensions: 150 × 40 × 70 mm

About Guide Sensmart

Guide Sensmart (part of Guide Infrared) produces reliable thermal imaging devices for global outdoor, industrial, and security use. With over 20 years of R&D experience and sales in over 70 countries, Guide combines innovation and value in thermal optics.

What’s in the Box

• Guide TD420 Thermal Monocular
• 18650 Rechargeable Battery
• USB‑C Charging/Data Cable
• Lens Cover & Lanyard
• Wrist Strap & Carry Bag
• Quick Start Guide & Warranty Card

Warranty

The TD420 comes with a 3-year manufacturer warranty and is supported by Guide’s international authorized service network :contentReference[oaicite:4]{index=4}.