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| Customization: | Available |
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| After-sales Service: | Yes |
| Warranty: | Yes |
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PVS - 3140NVG is a high - performance head - mounted night - vision binocular with reference to PVS - 31, an active head - mounted night - vision binocular in the United States. The low - light PVS - 3140NVG has the characteristics of a super - large field of view, high definition, no distortion, light weight and high strength, which is the ideal choice for night - vision devices.
| Material | optical glass,PMMA |
| diameter | 10-300mm |
| tolerance | +/-0.1mm |
| surface quality | 60-40 |

