This version of the Digital PVS-18 Night Vision Monocular features a reinforced 7075 aluminum & steel housing. Beware of cheaper listings that a plastic/polymer housing! The GEN18 monocular, based on the U. Special Forces' AN/PVS-18 military term, is a versatile night vision system. It offers handheld use, configurable for right or left-eye, and supports dual mounting with another GEN18 or similar monoculars like PVS-14. 4 imaging modes, clear day and night imaging. Significantly reinforced compared to PVS-14. Observation range of 300 meters. Powered by a single CR123. Can be used in pairs with standard PVS-14/PVS-18 bridge mounts. Field of View: 7.95°x6°. Battery Life: 2.5/3h (IR ON/IR OFF). Sensor Pixel Size: 12 micrometers.