Specifications include, but are not limited to: The City of Billings has obtained grant funding for Thirty (30) Night Vision Systems for the SWAT team. Each night vision system shall include each of the following: • Night Vision Binocular Device • Helmet Mount • Counterweight System • Night Vision Elastic Retention Mount • Multi-Function Marker Infrared Light; Each individual Night Observation Device (NOD) MUST be a dual tube system. The housing for each NOD must meet the following specifications: The housing body must be constructed of a corrosion resistant, fibre re-enforced polycarbonate with duel independently pivoting monocular pods. The apparatus must have “Flip-Up On-Off” and “Side Flip-Up On-Off” capabilities, the apparatus must have a dovetail-mounting interface and have no exposed wires. • Overall dimensions must not exceed 3” x 4.13” x 4.37”. • Powered by a single CR123 3V, which must meet or exceed 25 hours runtime at room temperature. • Battery compartment must be sealed when battery is installed correctly. • Unit must be submersible for up to 66 feet for two (2) hours. • Each unit must have an integral “low battery” indicator in the field of view. • Weight must not exceed 17.9oz with image intensifying tubes and battery installed. • Housing must have an onboard, integral, and selectable IR illuminator. • Each unit must have an integral ON/OFF indicator that alerts the wearer that the onboard IR is ON in the field of view • Must have the capability for an Inter-pupillary stop adapter that may be installed later.
