We offer two versions of our IRV1 viewer: one with a spectral response that extends from 350 to 2000nm and one with a 350 to 1700nm spectral response. The miniature IRV1 is ideal for applications involving the alignment of infrared beams or optical fibers in a near-IR system. A facemask is available for users requiring hands-free operation. Users may also mount the IRV1 on a post via the 1/4-20 internal threads, or they may use the viewer as a hand-held device.