High Performance Night Vision Monocular Device
High Performance Night Vision Monocular Device | Professional Gen 2+ & Gen 3 Imaging Solution for Security & Observation Applications
Xi'an MH Electronics And Technology Co., Ltd. manufactures the High Performance Night Vision Monocular Device, an advanced optoelectronic instrument engineered for professional low-light observation across security monitoring, forensics investigation, and coastal defense operations. Built around Gen 2+ image intensifier tube technology with 18 mm S-25 photocathode, this device delivers 57 lp/mm resolution and SNR between 18–25 dB. The compact aviation aluminum housing measures 115×69×54 mm and weighs 300 grams, enabling extended handheld deployment. With 80-hour battery runtime, IP65 protection, and operational range from -40°C to +50°C, the system supports week-long field missions in harsh environments. MHNV® integrates full-stack manufacturing capability—from optical design to IIT calibration—ensuring consistent performance for global customers across 60+ countries since 2013.
Advanced Image Intensifier Technology
The product uses a Gen 2+ tube with 500-900 µA/lm luminous sensitivity, turning ambient starlight into clear visuals. The 18 mm S-25 photocathode is sensitive to visible and near-infrared photons, and the microchannel plate provides signal amplification up to 30,000×.
Resolution to 57 lp/mm minimum beyond ordinary observation gear. The SNR is 18-25db, providing crisp imagery without significant grain. You can select green phosphor for normal viewing, or select white phosphor for improved contrast detection in forensic documentation.
Each tube is given a Zone 1, 2 and 3 blemish inspection and a Figure of Merit verification prior to final assembly.
Optical System Design
The F1.2 25 mm lens system delivers exceptional light-gathering capability paired with a 42° field of view (±3°). This wide angular coverage balances situational awareness with target identification range.
Magnification is fixed at 1×, preserving natural depth perception during handheld scanning. Diopter adjustment from -5 to +5 accommodates various eyesight conditions without external correction. Focus range spans 0.25 m to infinity, supporting both close-range inspection and distant surveillance.
Detection distance extends 250–300 meters under quarter-moon conditions. The optical design minimizes geometric distortion below 2%, maintaining spatial accuracy across the entire image circle.
Technical Specifications
| Parameter | Value |
|---|---|
| Image Intensifier Type | Gen 2+ |
| Photocathode | 18 mm S-25 |
| Resolution | ≥57 lp/mm |
| Signal-to-Noise Ratio | 18–25 dB |
| Luminous Sensitivity | 500–900 µA/lm |
| Field of View | 42° ±3° |
| Magnification | 1× |
| Lens System | F1.2, 25 mm |
| Detection Distance | 250–300 m |
| Diopter Range | -5 to +5 |
| Focus Range | 0.25 m to infinity |
| Housing Material | Aviation aluminum |
| Power Supply | 2.6–4.2 V |
| Battery Type | CR123 or AA ×1 |
| Battery Life | 80 hours (IR off) |
| Operating Temperature | -40°C to +50°C |
| Relative Humidity | 5–98% |
| Environment Rating | IP65 (IP67 optional) |
| Weight | 300 g (without battery) |
| Dimensions | 115×69×54 mm |
| Phosphor Options | Green / White |
Rugged Construction for Harsh Environments
The aviation grade aluminium housing is resistant to the intense environmental abuse typical of coastal salt spray and forensic field work. They incorporate precision CNC machining and Type-III strong anodising for resistance to corrosion in all maritime and industrial environments.
The internal electronics are protected from dust intrusion and water jets with IP65 sealing. Optional IP67 certification provides 1-meter submersion watertight for 30 minutes. The nitrogen purge removes moisture from the interior, so the lens doesn't fog when you move quickly from -40°C to +50°C.
Its 300-gram compactness lowers operator fatigue during long surveillance shifts. Ergonomic thumb grooves and textured grip surfaces provide secure handling with gloved hands in damp or frigid weather.
Extended Battery Performance
Smart circuit design and low-voltage tube operation maximise power efficiency. With the IR illuminator off, a single CR123 or AA battery will offer 80 hours of continuous operation, the normal field deployment cycle of a week, without battery replacement.
The gain is maintained constant until the battery is completely discharged, and the voltage drop on the battery discharge curves occurs. This is possible due to the operating range of 2.6-4.2 V. Critical operations shutdown is preceded by low-battery indicators.
The unit has built-in reverse polarity and over voltage circuitry to safeguard it from harm due to improper battery installation. Quick-access battery compartment allows for tool-free battery change in under 10 seconds.
Professional Applications
Security professionals deploy this High Performance Night Vision Monocular Device across multiple scenarios requiring covert observation. Perimeter surveillance teams monitor industrial facilities and border zones in total darkness, detecting intruders beyond 250 meters without revealing their position.
Forensic investigators document evidence at nighttime crime scenes, relying on the 500–900 µA/lm sensitivity to capture legal-quality imagery under minimal ambient lighting. The wide 42° field of view accelerates scene scanning during time-sensitive investigations.
Maritime search operations benefit from the device's temperature resilience and waterproof construction. Rescue teams scan coastal waters during storm-driven low-visibility conditions, identifying IR beacons or surface targets across 300-meter ranges.
Coastal defense units conduct patrol and monitoring activities in salt-laden environments, where the corrosion-resistant housing maintains operational readiness across multi-year service life.
MHNV® Manufacturing Advantage
Xi'an MH Electronics And Technology Co., Ltd. has vertically integrated manufacturing facilities including Class-10,000 cleanrooms for IIT calibration, SMT assembly lines, and precision optical workstations. This full stack capability eliminates third party dependency and the lead time for mass production can be reduced to 30–45 days.
Every item we sell is fully tested: SNR measurement, halo verification, EBI inspection, environmental stress screening to MIL-STD-810 procedures. Our engineering staff provides hands-on technical support from concept to mass production, assuring specification compliance for both OEM and ODM projects.
With more than 12 years of specialised knowledge, MHNV® supports customers in the hunting, security, law enforcement and industrial inspection markets in over 60 countries. ISO 9001:2015 certification and CE/RoHS compliance are the proof of the company’s devotion to the worldwide quality standards.
FAQ
Q: What is the difference between Gen 2+ tech and Gen 3 tech on this product?
A: Gen 2+ image intensifier tubes have a luminous sensitivity between 500 and 900 µA/lm, and are equipped with auto-gating protection against abrupt light exposure, which makes them reliable in mixed-lighting conditions such as urban security work. Gen 3 tubes are more sensitive (1200-1800 µA/lm) and have a longer operating life of over 10,000 hours and are used in professional applications where maximal low light performance is required. Both generations are subjected to the same flaw inspection and MTF testing to make sure optical sharpness fulfils professional safety standards in Zone 1, 2 and 3 specifications.
Q: Can the device work during the daytime?
A: Operating the gadget in daylight without protection will irreversibly destroy the image intensifier tube because the photocathode will be overexposed. The provided pinhole cap blocks 99.9% of the light for daytime testing or equipment verification. High-performance models have autogating circuits and bright-light cutoff mechanisms that automatically limit the gain of the tubes when the ambient illumination exceeds acceptable levels, thus minimising unintentional damage during dawn changeover.
Q: How does the 80-hour battery life impact field operations?
A: The 80-hour extended runtime with the IR illuminator off removes the need for battery swaps in the middle of missions during normal week-long deployments. The power efficiency is the consequence of optimised tube voltage management and intelligent circuit design, providing steady gain over the 2.6 to 4.2 V discharge curve. Low battery indicators provide a 30 minute notice before shutdown, allowing the batteries to be replaced during a non-critical time. The typical CR123 or AA battery compatibility eases logistics in remote regions.
Q: What maintenance methods are required for long term reliability?
A: In addition to standard battery replacement, the unit will require nitrogen purge verification and seal check every 12–24 months to ensure IP65/IP67 waterproof integrity. Optical Surfaces Optical surfaces must be cleaned with lens tissue and isopropyl alcohol to remove salt deposits or organic pollutants. Keep the gadget in a dry area (10–30°C) when not in use. MHNV® can help you extend the operational life of your equipment beyond 10 years with complete maintenance documentation and remote technical assistance and suitable care methods.
Q: Is the device compatible with helmet mounts or armament systems?
A: Its compact size (115×69×54 mm) and weight (300 g) allow for easy integration with standard helmet mounting brackets using adapter plates (optional). The 1× magnification maintains the natural depth sense, essential for navigation while head-mounted. The inbuilt tripod socket accommodates 1/4"-20 threads compatible with photographic and surveillance tripods for stationary observation. The ODM services at MHNV® offer custom mechanical interfaces for specialised mounting needs across vehicle platforms or robotic systems.
Contact MHNV® for Customized Solutions
Ready to enhance your High Performance Night Vision Monocular Device low-light observation capability? Contact our engineering team at sarah@mh-elec.com for technical specifications, sample requests, or OEM project consultation.
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