★该夜视仪使用2代+(准3代及更高级别)级别像增强器
This night vision device uses 2nd generation+(quasi 3rd generation and higher) level image intensifiers
★自带红外辅助光源 Equipped with infrared auxiliary light source
★可头戴可手持;可双眼观看可单眼观看
Can be worn on the head or held in the hand; Can be viewed with both eyes or with one eye
★强光断电保护 Strong light power-off protection
★自动亮度调节 Automatic brightness adjustment
★超宽带多层增透膜 Ultra wideband multilayer anti reflective film
★电池盖弹簧内嵌设计 Embedded design of battery cover spring
★可接高倍镜头 Can be connected to high magnification lenses
★眼距可调节 Adjustable eye distance
★独立双开关系统 Independent dual switch system
★可接独立远距离红外灯 Can be connected to independent long-distance infrared lights
★具备IP65防水防尘级别 Equipped with IP65 waterproof and dustproof rating
型号 model  | DD2021  | DD3021  | 
外观样式 Appearance style  | 双目双筒 Binocular binocular  | 双目双筒 Binocular binocular  | 
增像管级别 Level of image intensifier tube  | 2代+(Gen2+)  | 准3代  | 
分辨率(线对,lp/mm) resolving power  | 60-64  | 64-72  | 
品质因数(FOM值)quality factor  | 1400-1800  | 1600-2300  | 
灵敏度(微安/流明,µ A/lm)sensitivity  | 700-1000  | 850-1200  | 
信噪比 Signal-to-noise ratio  | 23-28  | 28-32  | 
亮度增益(cd/㎡/lx) Brightness gain  | 8000-12000  | 10000-20000  | 
阴极面类型 Type of Yin Pole Surface  | S25  | GaAs  | 
镜片镀膜类型Lens coating type  | 超宽带多层增透膜 Ultra wideband multilayer anti reflective film  | |
放大倍率(倍,X) Magnification rate  | 1x  | 1x  | 
视场(度,°)field  | 40  | 40  | 
视度调节范围(屈光度)(度,°) Visual adjustment range  | +5/-5  | +5/-5  | 
焦距(mm) focal length  | 25  | 25  | 
物镜调节范围 (米,m) Objective adjustment range  | 0.25--∞  | 0.25--∞  | 
体积(毫米,mm) volume  | 126X103X77  | 126X103X77  | 
重量(克,g) weight  | 790  | 790  | 
电源电压 (伏,v)supply voltage  | 2.0-4.2  | 2.0-4.2  | 
电池类型 Battery type  | 1X CR123A锂电池  | 1X CR123A锂电池  | 
连续工作时间(小时,h) Continuous working hours  | 100(未开红外)40(开启红外) 100 (without infrared enabled) 40 (with infrared enabled)  | |
防强光保护功能Anti strong light protection function  | 有 yes  | 有 yes  | 
方向感应自动开关功能 Direction sensing automatic switch function  | 有 yes  | 有 yes  | 
自动亮度功能 Automatic brightness function  | 有 yes  | 有 yes  | 
电池盖弹簧内嵌设计Embedded design of battery cover spring  | 有 yes  | 有 yes  | 
红外辅助灯 Infrared auxiliary light  | 有 yes  | 有 yes  | 
内置红外指示灯 Built in infrared indicator light  | 有 yes  | 有 yes  | 
红外灯波长(nm)LED wave length  | 850  | 850  | 
安装远距离独立红外灯 Installing remote independent infrared lights  | 支持 support  | 支持 support  | 
眼距调节功能 Eye distance adjustment function  | 支持 support  | 支持 support  | 
接高倍镜头Connect to high magnification lens  | 支持 support  | 支持 support  | 
工作温度范围 (°C ) Working temperature range  | -50/+60  | -50/+60  | 
贮藏温度范围(°C ) Storage temperature range  | -50/+70  | -50/+70  | 
相对湿度 relative humidity  | 5%-98%  | 5%-98%  | 
无故障时长 No fault duration  | 10000小时/10000 hours  | 10000小时/10000 hours  | 
防水防尘级别 Waterproof and dustproof level  | IP65  | IP65  | 
官方质保 Official warranty  | 1年/1 year  | 1年/1 year  |