Thermal and 4K Digital Imaging in One Optic
The DNT Optics TNC4K219R ThermNight 4K combines thermal imaging, 4K digital day and night vision, laser rangefinding and the DNT Ballistic Engine in one multispectral scope. The two imaging channels support rapid heat detection and detailed visual identification as light and viewing conditions change.
Wide Thermal View for Faster Detection
The thermal channel uses an uncooled 256 x 192 detector with a 12 micrometre pixel pitch, 40 fps frame rate and NETD of 18 mK or less. A 19 mm thermal objective, 2x base magnification and 9.2 x 6.9 degree field of view provide broad scene coverage for close-to-mid-range scanning. Selectable thermal magnification extends from 2x to 8x.
4K Day and Night Detail
The digital channel is built around a 3840 x 2160 CMOS sensor operating at 30 fps with a 50 mm f/1.8 objective lens. Its 3x base magnification extends to 24x through selectable magnification levels, while the 8.8 x 4.9 degree digital field of view keeps the surrounding scene visible. The integrated 850 nm infrared illuminator supports low-light viewing at distances of up to 450 yd.
2100-Yard Laser Rangefinder and DNT Ballistic Engine
The built-in laser rangefinder measures from 5 to 2100 yd. Measured distance data works with the DNT Ballistic Engine to provide real-time ballistic solutions. Ballistic profiles can be synchronised through the DNT App and selected directly on the device.
Thermal Auto Zeroing
Zero the digital channel once and the thermal view automatically follows the same alignment. This removes the need to complete a separate thermal-channel zeroing process and keeps setup focused on one primary adjustment workflow.
Thermal Zoom Lock
Thermal Zoom Lock keeps the thermal image at base magnification to preserve a wider field of view while the digital channel magnifies for closer inspection. This allows broad thermal awareness and detailed digital viewing to be used together without narrowing both channels at the same time.
Display, Storage and App Connectivity
A 0.49-inch Micro-OLED display presents a 1920 x 1080 image at 60 Hz, with 65 mm eye relief. The scope includes 64 GB of built-in storage for recordings and connects by Wi-Fi to the DNT App. App functions include ballistic-profile synchronisation, live-view streaming and recording management.
Field-Ready Power and Construction
Power comes from a rechargeable 21700 flat-top lithium-ion battery with a stated operating time of 5 hours 45 minutes. A 5 V USB-C external power input is supported. The housing is rated IP67 and specified for operation from -20 to 50 degrees Celsius. It is recoil rated to 800 Gs and .50 BMG. Net weight is 737 g and dimensions are 196 x 82 x 78 mm.
Technical Specifications
| Specification |
Value |
| Brand |
DNT Optics |
| Model / SKU |
TNC4K219R |
| Digital sensor resolution |
3840 x 2160 pixels |
| Digital sensor frame rate |
30 fps |
| Digital objective lens |
50 mm f/1.8 |
| Digital magnification |
3x, 4.5x, 6x, 9x, 12x, 18x, 24x |
| Digital field of view |
8.8 x 4.9 degrees; diagonal 10.1 degrees |
| Digital linear field of view |
15.4 x 8.6 yd at 100 yd; diagonal 17.6 yd |
| Thermal detector |
Uncooled thermal detector |
| Thermal sensor resolution |
256 x 192 pixels |
| Thermal sensor frame rate |
40 fps |
| Pixel pitch |
12 micrometres |
| NETD |
18 mK or less at 25 degrees Celsius |
| Thermal objective focal length |
19 mm |
| Thermal magnification |
2x, 3x, 4x, 5x, 6x, 7x, 8x |
| Thermal field of view |
9.2 x 6.9 degrees; diagonal 11.5 degrees |
| Thermal linear field of view |
16.2 x 12.1 yd at 100 yd; diagonal 20.2 yd |
| Laser rangefinder |
5 to 2100 yd |
| Ballistic system |
DNT Ballistic Engine |
| IR illuminator |
Integrated 850 nm; stated viewing distance up to 450 yd |
| Display |
0.49-inch Micro-OLED |
| Display resolution |
1920 x 1080 pixels |
| Display refresh rate |
60 Hz |
| Eye relief |
65 mm |
| Storage |
64 GB built-in storage |
| Connections |
Wi-Fi / DNT App |
| Battery |
Rechargeable 21700 flat-top lithium-ion battery |
| Operating time |
5 h 45 min |
| External power |
5 V USB-C |
| Net weight |
737 g / 26.0 oz |
| Dimensions |
196 x 82 x 78 mm / 7.7 x 3.2 x 3.1 in |
| Operating temperature |
-20 to 50 degrees Celsius / -4 to 122 degrees Fahrenheit |
| Ingress protection |
IP67 |
| Recoil rating |
800 Gs / .50 BMG |
Use and Care
- Select the supplied QDS150 or PM20L mounting option appropriate to the intended setup and install it in accordance with the user manual.
- Zero the digital channel first; Thermal Auto Zeroing then applies the alignment to the thermal view.
- Synchronise and select ballistic profiles through the DNT App when using the DNT Ballistic Engine.
- Charge or externally power the device through its 5 V USB-C connection using suitable equipment.
- Keep optical surfaces clean with the supplied lens cleaning cloth and fit the supplied covers when the scope is not in use.
- Read the supplied user manual and quick-start guide before installation or operation.
Package Contents
- DNT Optics TNC4K219R x 1
- QDS150 mount x 1
- PM20L mount x 1
- Flip-up cover x 1
- Eyecup x 1
- Lens cleaning cloth x 1
- 21700 battery pack x 1
- Throw lever x 1
- Rubber lens cover x 1
- Data cable x 1
- User manual x 1
- Quick-start guide x 1
Frequently Asked Questions
What imaging systems does the TNC4K219R combine?
It combines a 256 x 192 thermal channel with a 3840 x 2160 digital day and night channel in one multispectral scope.
What is the range of the built-in laser rangefinder?
The integrated laser rangefinder measures from 5 to 2100 yd.
How does Thermal Auto Zeroing work?
After the digital channel is zeroed, the thermal view automatically follows that alignment, avoiding a separate thermal-channel zeroing process.
What does Thermal Zoom Lock do?
It keeps the thermal image at base magnification to retain a wider field of view while the digital channel magnifies for closer inspection.
Does the scope connect to the DNT App?
Yes. Wi-Fi connection to the DNT App supports ballistic-profile synchronisation, live-view streaming and recording management.
How much recording storage is built in?
The TNC4K219R includes 64 GB of built-in storage.
What battery does it use and how long does it operate?
It uses a rechargeable 21700 flat-top lithium-ion battery with a stated operating time of 5 hours 45 minutes.
Which mounts are included?
The package includes one QDS150 mount and one PM20L mount.
