Product details:

The Pulsar Challenger GS 3.5x50 Night Vision Monocular is designed for crisp and clear short-range, lowlight viewing. Its durable, fiberglass reinforced plastic housing enables reliable use in inclement weather conditions such as thick fog, heavy shower, dust, sand storm, etc. The Pulsar Challenger GS 3.5x50 Night Vision Monocular operates by a single-switch control, offering ease of use and preventing accidental activation of the IR illuminator.