DNT Optics TNC4K219R ThermNight 4K — Thermal & 4K Day/Night Multi-Spectral Scope with Laser Rangefinder & Ballistic Calculator

The TNC4K219R ThermNight 4K takes the ThermNight fusion concept and pairs it with a true 4K day/night channel — a 3840×2160 sensor that gives you sharp colour detail in daylight and a clean digital picture after dark, alongside a wide-view thermal channel for fast detection. Run Picture-in-Picture to see a thermal detection view and the 4K channel at once, range a target out to 2,100 yards, and let DNT’s ballistic engine do the rest. With a wider thermal field of view than the standard ThermNight range, a quick-detach mount, and a housing rated for .50 BMG recoil, it’s built for hunters and long-range shooters who want to spot fast and confirm in detail.

See it in action

Key features

• 4K day/night channel: A 3840×2160 sensor delivers genuine 4K clarity in daylight and a clean digital image at night, with 3–24x digital magnification including a 3–6x lossless zoom range.
• Wide-view thermal channel: A 12μm, ≤18mK thermal sensor with a 9.2°×6.9° field of view — 70% larger than the standard TNC225R ThermNight — for faster scanning and detection before you zoom in.
• Picture-in-Picture (PIP) mode: View thermal detection and the 4K channel in the same frame — spot the heat signature, then confirm what it is in sharp detail.
• Long-range laser rangefinder: Ranges out to 2,100 yards — nearly double the standard ThermNight range’s 1,100 yards.
• Built-in ballistic calculator: DNT’s Ballistic Engine takes your zero distance, scope height, muzzle velocity, caliber, bullet weight, ballistic coefficient and environmental data to give a real-time holdover solution.
• Thermal Auto Zeroing & Thermal Zoom Lock: Zero the thermal channel automatically off your digital zero, and keep a wide thermal view locked in place while you zoom the digital channel in for detail.
• Independent one-shot zeroing: Digital and thermal channels hold separate zero profiles, each adjustable on its own X/Y offset.
• Long-range IR illuminator: Detachable 850nm illuminator, effective out to 450 yards.
• Quick-detach mount included: QDS150 quick-detach mount plus a PM20L 20 MOA Picatinny mount and throw lever, for fast on/off without losing zero.
• DNT app with One Tap Connect: Pair instantly, stream and review footage, and sync custom ballistic profiles from your phone.
• Built-in 64GB memory: Record footage without a separate memory card.
• IP67 waterproof and dustproof, .50 BMG recoil rated: Built to handle the heaviest recoiling rifles and keep working through rain, dust and mud.

Comfortable behind the glass

A generous 65mm (2.6″) eye relief keeps the TNC4K219R comfortable to use on hard-recoiling rifles, without forcing you into an awkward head position to get a full sight picture.

Wide thermal view, sharp 4K detail

The thermal channel’s wider field of view means more ground covered per glance, so you spot a heat signature faster before switching to the 4K channel or PIP to confirm what it is.

Thermal Zoom Lock in action

Zoom the digital channel in on a target and the thermal PIP inset holds its wide view rather than zooming in lockstep — so you keep full situational awareness of what’s around your target while you look closer at it.

Detection at real distance

The wider thermal field of view isn’t just a spec number — it means picking out a group of animals strung out across a hillside in one glance, well before they’d fill the frame on a narrower thermal channel.

Ballistics, dialled in

Enter your zero distance, scope height, muzzle velocity, caliber, bullet weight, ballistic coefficient and bullet length once, and the DNT Ballistic Engine factors in live temperature and altitude to give you a holdover solution on the fly.

Full specifications

Thermal channel
Sensor type	Uncooled infrared, 12μm pixel pitch
Thermal sensitivity (NETD)	≤18mK
Field of view	9.2° × 6.9° (70% larger than the TNC225R)
Base magnification	2x
4K day/night channel
Sensor	3840 × 2160 (4K) CMOS
Magnification	3–24x digital, with 3–6x lossless digital zoom
Eye relief	65mm (2.6″)
Shared systems
Display	1920×1080 Micro-OLED
Laser rangefinder range	5–2,100 yards
IR illuminator	Detachable 850nm, effective to 450 yards
Ballistic calculator	DNT Ballistic Engine — zero distance, scope height, muzzle velocity, caliber, bullet weight, ballistic coefficient, bullet length, temperature and altitude inputs; profiles sync via DNT app
Zeroing	Independent one-shot zeroing per channel (Digital and Thermal), with Thermal Auto Zeroing off the digital zero
Special features	Thermal Zoom Lock
Mounting	QDS150 quick-detach mount, PM20L 20 MOA Picatinny mount, throw lever (all included)
Battery	2× 21700 flat-top (included)
Charging	USB data cable, included charger
Onboard memory	64GB built-in
Connectivity	WiFi, DNT companion app with One Tap Connect
Recoil rating	.50 BMG rated
Waterproof rating	IP67 (dust and water resistant)

A closer look

Precise control

A zoom ring with a fold-out throw lever gives you fast, positive magnification changes without breaking your cheek weld — useful when a target closes distance quickly.

What’s in the box

• TNC4K219R ThermNight 4K scope
• QDS150 quick-detach mount
• PM20L 20 MOA Picatinny mount
• Throw lever
• Flip-up lens cover
• Rubber lens cover
• Eye cup
• 2× 21700 flat-top batteries
• Battery charger
• Data cable
• Lens cleaning cloth
• User manual and quick start guide

Who it’s for

Built for hunters and long-range shooters who want to detect fast and confirm in detail — the wider thermal field of view means less time scanning, the 4K day/night channel means a genuinely sharp identification image, and the 2,100-yard rangefinder and ballistic engine back that up when the shot is a long way out. Rated to handle .50 BMG recoil and sealed to IP67, it’s built for serious hardware.