Speeds fiber tracing and identification. Locates faults including tight bends, breaks and bad connectors. Accelerates end-to-end fiber checks. Easily verifies polarity and identifies fibers. Features continuous and flashing modes, ergonomic case survives drops, impacts and vibrations. Supports 2.5 mm and 1.25 mm SFF connectors. Over 80 hours of battery life with two AA batteries. Attaches with handy lanyard and carrying case. Survives drops, vibrations and impacts. Features continuous and flashing modes. Simplifies fiber polarity verification. Bright red visible laser light source, accelerates end-to-end fiber continuity checks. Weight: 5.7 oz. Dimensions: 6.2''(H) x 2''(W) x 1.13''(D).