The Guide TA425 thermal imaging monocular with attachment is the solution for you when you want convenient observation and field-ready equipment. It utilizes a 400x300@17 μm (8–14 μm) sensor with a NETD of ≤50 mK, helping you detect subtle temperature differences and quickly distinguish objects from their backgrounds. Images are viewed on a 0.39" 1024x768 OLED screen, which enhances detail clarity and comfort during extended patrols or ambushes. The 25mm F1.1 lens and 14.6x11.0° field of view make it easy to scan the area without tunnel vision. The entire unit is lightweight (approx. 400 g), compact, and IP67-rated, so you can operate in rain and dust.
A 400x300 (17 μm) sensor and NETD ≤50 mK for improved contrast in challenging conditions. Smooth observation thanks to 50 Hz, especially when scanning and tracking motion. A 0.39" 1024x768 OLED display for a clear view without eye fatigue. A 25mm F1.1 lens and a 14.6x11.0° field of view for efficient terrain scanning. IP67 waterproofing and a compact design for operation in rain, mud, and dust. A lightweight 400 g and manual focus for quick adaptation in the field. Detection and contrast when observing in the forest at dusk When observing in the forest at night, quickly capturing a silhouette and confidently distinguishing it from the background is crucial, which is why the Guide TA425 is based on a 400×300@17 μm detector with a NETD of ≤50 mK. This sensitivity helps detect subtle temperature differences when moisture or a cool surface "flattens" the contrast. The 8–14 μm band is typical for thermal observation, which translates into stable operation regardless of the light. In practice, you can more easily control the situation and make decisions about further action more quickly.
Smooth 50 Hz image for scanning and tracking movement When moving in the field or scanning the forest line, the smoothness of the image directly impacts comfort and efficiency. The 50 Hz refresh rate reduces ghosting and facilitates tracking of moving objects, which you will appreciate during dynamic observations. This allows you to "catch" movement at the edge of your field of view more quickly and is less likely to lose track of the target when changing direction. This is a practical advantage when operating in the field under ideal conditions.
0.39" OLED View and Comfortable Long-Term Observation When observing at night in the field, it's important to have a clear image that doesn't strain the eyes, which is why we've used a 0.39" OLED screen with a resolution of 1024x768. This view helps you assess the shape and behavior of an object in short time windows before it disappears behind an obstacle. You can choose from four color palettes, allowing you to customize the presentation to suit the conditions and preferences. The Guide TA425 is therefore ideal for quickly interpreting the scene and maintaining comfort during extended use.
25mm F1.1 Lens and 14.6x11.0° Field of View If you need efficient field search, the 25mm F1.1 lens and 14.6x11.0° field of view offer a comfortable balance between reach and spatial control. This makes it easier to scan the area without constantly refocusing and reduces the risk of missing an object in the periphery. Manual focus allows you to quickly adjust the image to the distance, which is important when observing at varying distances. In practice, you gain more predictable operation and faster response.
Compact design and IP67 for rain Outdoor equipment must function regardless of the weather, so the IP67-rated housing helps maintain reliability in rain, dust, and mud. Its compact dimensions of 15 x 5.2 x 5.7 cm and weight of 400 g make the device easy to carry and quicker to reach when the situation is "here and now." This is important both for short trips and longer sessions when portability is key. The Guide TA425 is designed for practical use, without having to "spar" your equipment.
Technical Specifications Guide TA425 Thermal Imaging Attachment/Monocular Manufacturer: Guide Sensmart Diopter Adjustment: NONE Detector Type: 400×300@17 μm, 8–14 μm, NETD ≤50 mK Refresh Rate: 50 Hz Lens: 25 mm F1.1 Field of View: 14.6×11.0° Display: 0.39” OLED, 1024×768 Image Palettes: 4 Color Palettes Focus Adjustment: Manual Battery Life: 3 h Dimensions: 15 × 5.2 × 5.7 cm Weight: 400 g Ingress Protection: IP67 WiFi: No Photos: No Reticle sight: no