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Featuers:

• DT-NH821 is a new product based on the latest optoelectronics technology. It uses high-performance second-generation/third generation image intensifier. It has the characteristics of excellent performance, small size, light weight, clear image, simple operation, high performance-price ratio, and the magnification can be changed by replacing objective lens (or connecting multiplier lens). 
• The fuselage is made of all metal. It is small in size, lightest in weight and high in strength.
• Good optical quality, clear imaging, high brightness, uniform brightness throughout the observation range.
• Skillful design and high-quality image tube are adopted to maximize the cost-performance ratio of products.
• The product can be connected with digital cameras, cameras and video cameras. It can be used with gun sight card or alone.
• Waterproof IP65 or IP67

Specs：

• Model: DT-NH821
• IIT: Gen2+
• Magnification: 1X
• Resolution ( LP/mm): 45-57
• Photo cathode type: S25
• S/N（dB）: 15-21
• Luminous sensitivity（uA/lm）: 450-500
• MTTF（hrs）: 10,000
• FOV（degree）: 42+/-3
• Detection distance（M）: 180-220
• Graduation cursor: Internal（optional）
• Diopter range: +5/-5
• Lens system: F1.2, 25mm
• Coating: Multilayer broadband coating
• Range of focus（M）: 0.25--∞
• Auto anti strong light: High sensitivity broadband detection
• Rollover detection: Solid non-contact automatic detection
• Dimensions（mm）: 115x69x54(No eyeshade)
• Material: Aviation aluminum
• Weight（no battery）: 290g
• Power supply: 2.6-4.2V
• Battery type: CR123(A)x1
• Battery life（H）: 80(IR OFF)  40(IR ON)
• Operating Temperature（℃）: -40/+50
• Relative Humidity: 5%-98%
• Waterproof：IP65（IP67 optional）