Product Description
DT-NH9X1 is a new product based on the latest optoelectronics technology. It uses high-performance second-generation/third-generation image intensifier. It features excellent performance, small size, light weight, clear imaging, video output, adjustable eye distance, and can change magnification by changing objective lenses (or connecting multiplier lenses). This product can be adjusted arbitrarily with different eye distance requirements. The built-in digital video acquisition system of the night vision instrument can easily realize the acquisition and transmission of digital video at night and without illumination, thus realizing the visual command coordination at night. Built-in red explosion lamp, infrared lighting and automatic strong light protection. This product has strong practicability and can be applied to mili-tary observation, frontier and coastal defense reconnaissance, public security surveillance, evidence collection, customs smuggling, etc. in the night without lighting. It is an ideal equipment for public security departments, armed forces, special po-lice forces, and guard patrols.
| MODEL | DT-NH921 |
| IIT | Gen2+ |
| Magnification | 1X |
| Resolution | 45-57 |
| Photocathode type | S25 |
| S/N(db) | 15-21 |
| Luminous sensitivity(μa-lm) | 450-500 |
| MTTF(hrs) | 10,000 |
| FOV(deg) | 42+/-3 |
| Detection distance(m) | 180-220 |
| Adjustable range of eye distance | 65+/-5 |
| Diopter(deg) | +5/-5 |
| Lens system | F1.2, 25mm |
| Coating | Multilayer broadband coating |
| Range of focus | 0.25–∞ |
| Auto anti strong light | High Sensitivity, Ultra Fast, Broadband Detection |
| rollover detection | Solid non-contact automatic detection |
| Dimensions (mm) (without eye mask) | 130x130x69 |
| material | Aviation aluminum |
| Weight (g) | 393 |
| Power supply (volt) | 2.6-4.2V |
| Battery type (V) | AA(2) |
| Wavelength of infrared auxiliary light source (nm) | 850 |
| Wavelength of red-explode lamp source (nm) | 808 |
| Video capture power supply (optional) | External power supply 5V |
| Video resolution (optional) | Video 1Vp-p SVGA |
| Battery life (hours) | 80(W/O IR) 40(W/IR) |
| Operating Temperature (C | -40/+50 |
| Relative humidity | 5%-98% |
| Environment rating | IP65(IP67 Optional) |
The purpose of objective lens adjustment to see clearly at different distances. Before adjusting the objective lens,Please adjust the eyepieces first according to the aforementioned method. When adjusting the objective lens, please select a darker environment. As shown in Figure ④, open the objective lens cover, aim at the target, and turn the objective lens focusing handwheel clockwise or counterclockwise until the clearest environment image is seen, and the objective lens adjustment is completed. When observing targets at different distances, the objective lens needs to be adjusted again according to the aforementioned method.When the ambient illuminance is very low (full black environment), and the night vision device cannot observe a clear image, you can turn the work switch clockwise to another gear. the system enters the "IR" mode. At this time, the built-in infrared auxiliary lighting of the product is turned on to ensure normal use in a completely dark environment. Note: In the infrared mode, if you encounter similar equipment, it is easy to expose the target.