Thermal monocular Viking TOPDON TS004 — 410 m range, 1024×768 OLED sensor

The Viking TOPDON TS004 thermal monocular is a handheld observation tool with a high-resolution 1024×768 OLED display and thermal detection capability up to 410 meters. Designed for use in low-light or no-light environments, this compact device delivers real-time thermal imaging with selectable color palettes, onboard photo and video recording, and digital zoom for closer inspection. Its portable form factor and intuitive controls make it suitable for field observation, security patrols, and wildlife monitoring.

Advantages

The thermal sensor combined with the 1024×768 OLED display produces clear contrast between heat sources and surroundings, enabling reliable detection at distances up to 410 m. Multiple color palettes and adjustable digital zoom improve scene interpretation and target identification. Integrated photo and video recording allow users to document findings directly on the device, while a compact, handheld design supports mobility and one-handed operation. Power management and user-friendly menus simplify extended outdoor use.

Suitable for

• Night-time observation and navigation
• Security and perimeter patrols
• Wildlife detection and monitoring
• Search and rescue reconnaissance
• Inspection of buildings, roofs and outdoor installations

Key specifications

• Display resolution: 1024×768 OLED
• Thermal detection range: up to 410 meters
• Imaging output: real-time thermal video
• Color palettes: multiple selectable palettes for contrast adjustment
• Zoom: digital zoom for closer view
• Recording: onboard photo and video capture
• Form factor: handheld monocular, portable and lightweight

How to use

Power on the monocular and allow the thermal sensor and display to stabilize. Use the eyepiece or display to scan the area, selecting the appropriate color palette for highest contrast between targets and background. Adjust digital zoom to examine distant heat sources and use the recording function to capture images or video as needed. Navigate menus with the device buttons to change settings, playback recordings and manage storage. Recharge or replace the power source according to the manufacturer’s guidance to maintain operation during extended use.

Usage recommendations

For best detection performance, scan slowly across the scene and switch palettes if contrast is low. Keep the lens clean and store the device in a dry, temperature-stable environment. Use recorded images and video for post-event analysis and reference. When operating at maximum detection range, combine visual scanning with movement patterns to increase the likelihood of spotting small or partially obscured heat sources.