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Day/Night Monocular Infrared Thermal Imager

The HT S201/S202/S203 series is a high-performance, portable monocular infrared thermal imager designed for all-weather environmental observation. This series utilizes advanced Vanadium Oxide (Vox) detectors, offering various infrared resolution options from 256×192 up to 640×512 to meet diverse accuracy and budget requirements. Integrated with a 0.39-inch high-definition OLED display and supporting multiple color palettes and electronic zoom functions, it clearly presents thermal distribution details, making it suitable for observation, detection, and search tasks in low-light or no-light conditions.


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Product Applications

This product is widely applicable in the following scenarios:

Wildlife observation and animal/plant monitoring

Search and rescue operations, outdoor exploration, and mountaineering support

Maritime navigation, night operations, and vessel monitoring

Security patrols, law enforcement investigation, and perimeter警戒

Personal outdoor safety and emergency evasion


Product Usage

Supports manual focus and diopter adjustment (-6D ~ +4D) to accommodate different users' eyesight.

Built-in Wi-Fi allows connection to mobile devices for image transmission or remote control.

Features hot spot tracking and Picture-in-Picture (PIP) for quick identification of high-temperature targets.

Integrated 3200mAh rechargeable lithium battery (Model 18650) provides long endurance.

Utilizes Type-C interface; supports JPG image and MP4 video recording.

Whole unit protection rating IP65, dustproof and waterproof, suitable for harsh outdoor environments.


Product Advantages

Imaging in Total Darkness: Genuine day/night capability, operates without any ambient light, overcoming visual limitations.

Multiple Model Options: S201/S202/S203 correspond to different resolutions and detection performances, allowing users to choose according to their needs.

High Sensitivity & Low Noise: NETD as low as 25mK, providing detailed imagery and strong temperature difference discrimination.

Rugged & Portable Design: Compact structure (188×81×52mm), high protection rating, easy to carry and use in the field.

Smart Assistive Functions: Supports electronic zoom, multiple color palettes, Wi-Fi connectivity, and more, enhancing operational experience and work efficiency.


Technical Specifications Table

Feature/SpecificationHT S201HT S202HT S203
Detector TypeVanadium Oxide (Vox)Vanadium Oxide (Vox)Vanadium Oxide (Vox)
IR Resolution256×192384×288640×512
NETD≤50mK @25°C, F#1.0≤30mK @25°C, F#1.0≤25mK @25°C, F#1.0
Focal Length25mm35mm35mm
Field of View7.0°×5.4°7.5°×5.7°12.5°×10.0°
Pixel Pitch12μm

Spectral Range8~14 μm

Frame Rate50 Hz

Ranging Range (Building)10m ~ 1200m

Ranging Accuracy (Building)<400m: ±1m, >400m: ±0.4%

Focus ModeManual Focus

Display0.39-inch OLED

Display Resolution1024×768

Electronic Zoom1x / 2x / 4x1x / 2x / 4x / 8x
Diopter Adjustment-6D ~ +4D

Hot Spot Tracking / PIPSupported

Color PalettesWhite Hot, Black Hot, Red Hot, Rainbow, Iron Red, Cold

LanguageEnglish

Photo/Video FormatJPG / MP4

USB InterfaceTYPE-C

Battery3200mAh Rechargeable Li-ion Battery (Model 18650)

Protection RatingIP65

Dimensions188 × 81 × 52 mm

Detection & Recognition Ranges

Lens25mm35mm35mm
Detection DistancePerson1653m1653m

Vehicle3125m4375m
Recognition DistancePerson413m413m

Vehicle781m1094m



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We offer a comprehensive range of services and solutions, so contact us today to find out how we can ensure that your project is delivered on time and within budget.

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