The DT-NH921 is a dual-tube, single-objective night vision monocular developed from the PVS-7 platform: compact, light, with adjustable interpupilary distance and swappable objectives (3X/4X/5X) that change magnification. An optional thermal-fusion module (DT-NH921T) adds a 384×288 / 640×480 thermal channel, and built-in video output supports real-time image capture for recording and remote viewing.
Product Images
Highlights
SVGA 1 Vp-p video capture with optional external 5 V power — record and relay what the operator sees.
DT-NH921T adds an 8-12 μm thermal channel (384×288 / 640×480 optional, F1.0 aperture) for live-target detection in total darkness.
Aviation aluminum, 356 g shell / 410 g complete, IP65 sealing (IP67 optional).
Applications
Night observation and recording ｜ Patrol and inspection walks ｜ Thermal-fusion upgrade path (NH921T) ｜ Training and documentation capture
Observation Variants Family — Six Configurations
| Model | Configuration | FOV | Standout | Weight |
|---|---|---|---|---|
| DT-NH921 | Dual-tube monocular (PVS-7 class) | 42° | Video output; NH921T thermal-fusion variant | 410 g |
| DT-NH7 | Dual-tube monocular (value class) | 42° | 180-230 m observation, 10,000 h tube | 400 g |
| DT-NH8XX | Combinable monocular | 42° | Two units pair as binocular or split | 290 g |
| DT-NH8XD | Dual-tube binocular (split-into-two) | 42° | 65±5 mm pupil, halves work solo | 610 g |
| DTS-31N | Head-mounted binocular (PVS-31 class) | 50° | Widest FOV, 300 h pack option | 523 g |
| DTS-14 | Wide-field monocular | 50° | 80 h low-light runtime, manual gain | 240 g |
Highlighted row = this model. All figures are manufacturer specifications; full tables live on each model page (linked). Family hub: /night-vision/
How to Choose in This Family
- Field of view. 42° observation class (NH921/NH7/NH8XX/NH8XD) versus 50° head-mounted wide-field (DTS-31N/DTS-14).
- One unit or a system. Combinable members (NH8XX/NH8XD) cover both binocular and two-monocular duty with one purchase.
- Recording and thermal. Only the NH921 carries video output and the NH921T thermal-fusion upgrade path.
- Runtime. DTS-14 runs 80 h on low light — the long-shift pick.
Where this model sits: DT-NH921 is 410 g.
Full Specifications
| Item | Value | Evidence |
|---|---|---|
| Image intensifier | Gen 2+ / Gen 3 (optional) | Manufacturer spec |
| Magnification | 1X (3X/4X/5X objectives) | Manufacturer spec |
| FOV | 42° ±3° | Manufacturer spec |
| Diopter adjustment | +5/-5 | Manufacturer spec |
| Auto brightness control | Yes | Manufacturer spec |
| Bright-light protection | Yes | Manufacturer spec |
| Material | Aviation aluminum | Manufacturer spec |
| Battery | 2 × AA (2.6-4.2 V) | Manufacturer spec |
| Operating temperature | -40 to +50 °C | Manufacturer spec |
| Humidity | 5-98% | Manufacturer spec |
| Waterproof | IP65 (IP67 optional) | Manufacturer spec |
| Dimensions | 130×130×56 mm (without eyecup) | Manufacturer spec |
| Weight | 356 g (shell) / 410 g (complete) | Manufacturer spec |
| Video output (optional) | 1 Vp-p SVGA, external 5 V 1 W | Manufacturer spec |
| NH921T thermal module | 384×288 / 640×480 optional, 8-12 μm, F1.0, fixed focus, 250 mm-∞; CR123A ×4 | Manufacturer spec |
Ordering & Delivery — What to Know Before You Buy
MOQ, lead time, payment terms, customization scope and export-licensing documentation are confirmed per quotation — send your mission profile, target quantity and destination port with the RFQ. Standard flow below:
RFQ → engineering proposal with mission math → production and factory testing → licensed export via major Chinese ports with end-user documentation. Training and spare-parts programs available.
Compliance & Licensed Export
Not subject to US ITAR — this product is exported from China under applicable regulations with valid export licenses, the same compliance posture across every Benelabo product line.
- Licensed export with end-user documentation on every shipment
- Buyers screened as part of every quotation; an export compliance statement accompanies each quotation
- Government and agency products are supplied only to authorized organizations
- Every published figure on this page is labeled manufacturer-spec or bench-tested
FAQ
How does the NH921 differ from the PVS-7 it is based on?
It keeps the dual-tube monocular layout but adds adjustable pupil distance, swappable 3X/4X/5X objectives, built-in video output and an optional thermal-fusion module (manufacturer specification).
What is the weight penalty for the thermal variant?
The NH921T uses the same body; the thermal module runs on four CR123A cells carried separately.
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