The DT-TW21 is a cutting-edge thermal clip-on monocular designed to revolutionize night operations by providing operators with enhanced situational awareness and superior target detection capabilities in complete darkness or low-visibility conditions. Engineered as a modular, multi-role visual enhancement system, it seamlessly transitions between handheld thermal imaging, helmet-mounted observation, and clip-on fusion modes-making it an indispensable tool for military, law enforcement, security, and surveillance professionals who operate in dynamic and challenging environments.
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Features
At the heart of the DT-TW21 is its advanced thermal imaging core, which combines high resolution, excellent thermal sensitivity, and a high frame rate to deliver crisp, real-time thermal imagery. This allows users to detect and identify heat signatures at extended ranges, even through obscurants such as smoke, light fog, dust, or foliage. When used as a clip-on device in front of night vision goggles (NVGs), the system's fusion mode intelligently overlays thermal data onto the intensified image, creating a combined visual feed that highlights both thermal contrast and ambient light details. This fusion capability dramatically improves target recognition, reduces visual clutter, and enhances operational effectiveness in complex or cluttered environments.
Built for durability and reliability in the field, the DT-TW21 features a rugged, nitrogen-purged housing that provides robust protection against water, dust, shock, and extreme temperatures. The nitrogen purging ensures the optics remain fog-proof under rapid temperature changes or high-humidity conditions, maintaining optimal performance in all weather and operational scenarios. The device is also equipped with multiple video output interfaces, allowing users to stream or record footage in real time for mission analysis, team coordination, or command and control integration.
Designed with user ergonomics and tactical flexibility in mind, the DT-TW21 offers intuitive controls, multiple display modes, and adaptable mounting solutions. Its compact and lightweight form factor minimizes added bulk when attached to helmets or NVGs, while the secure clip-on mechanism ensures stability and alignment during movement. Long-lasting battery life and power-efficient operation support extended missions without frequent recharging or battery swaps.

|
MODEL |
DTS-22N |
DTS-22T(Thermal fusion |
|
Generation |
Gen 2+/Gen3(optional) |
Gen 2+/Gen3(optional) |
|
Magnification |
1X |
1X |
|
FOV(°) |
50+/-2 |
50+/-2 |
|
Diopter |
+/-5 |
+/-5 |
|
Battery type(v) |
CR123A(1)/AA(1)/CR123A(4)external battery pack |
CR123A(1)/AA(1)/CR123A(4)external battery pack |
|
Power supply(v) |
1.2-1.6/2.5-4.2 |
1.2-1.6/2.5-4.2 |
|
Battery capacity |
300-3200maH |
300-3200maH |
|
Total Darkness IR System |
YES |
YES |
|
Automatic Brightness Control |
YES |
YES |
|
Bright Light Cut-off |
YES |
YES |
|
Infrared lluminator |
Built-in(850nm20mw) |
Built-in(850nm 20mw) |
|
IR Indicator |
YES |
YES |
|
Low Battery indicator |
YES |
YES |
|
Optical distortion |
0.5% Max |
0.5% Max |
|
Relative lllumination |
>75% |
>75% |
|
Distance of pupil |
30-35mm |
30-35mm |
|
Eyepiece aperture |
9mm |
9mm |
|
Display resolution |
1280x720 |
1280x720 |
|
Thermal image wavelength |
8-12uM |
|
|
Thermal image resolution |
384x288 |
|
|
Fusion mode |
Optical fusion |
|
|
Operating temperature(℃) |
-40--+55 |
-40--+55 |
|
Relative humility |
5%-95% |
5%-95% |
|
Waterproof |
IP65/IP67 |
IP65/IP67 |
|
Dimensions(mm) |
80x132x81 |
80x132x81 |
|
wight(g) |
360g(housing)/430g(finished) |
380g(housing)/450g(finished) |
Application Scenarios
The DTS-22T boasts convenient operating logic and stable operating performance. Its low-power design makes it ideal for extended nighttime operations. Whether for military reconnaissance, law enforcement patrols, border security, search and rescue missions, or critical infrastructure monitoring, this Thermal Clip On for Night Vision Devices' powerful long-range detection and fusion imaging capabilities provide strong support for professionals.
FAQ
Q: What is its waterproof rating?
A: It's waterproof rating is IP67.
Q: How long is the delivery time?
A: The delivery time is 3-5 days.
Q: What colors are available?
A: It is available in black.
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