<p>LONG OUTPUT DISTANCE: This 10mW visual fiber optic locator emits a strong red light that reaches 10 kilometers. High-efficiency circuits ensure stable power. METALLIC COLOR DESIGN: It is designed with a stainless steel head and aluminum body to prevent damage and dust, and the grounding design effectively prevents ESD damage. WIDELY APPLICABLE: The detector's 2.5 mm universal contact is compatibly designed for ST, LC, and both circular and square forms of various fiber optic cables. Test for both single-mode and multi-mode cables. Shell Material: Aluminum Pen Type Output Optical Power: More than 10mW Output Distance: 10KM Wavelength: 650nm 20nm Operating Temperature: 0-60 Storage Stability: -20-70 Operating Mode: Both CW and pulse available Applicable Interface: ST///LC (LC interface requires additional adapter) Power: 2 AA batteries (included) Color: Black+Orange Material: Metal Package Contents: 1 * 10mW Pen Type VFL 1 * Carrying Case 1 * Lanyard 1 * English Manual 2 * AA Batteries Only the above package contents are included; other products are not included. Note: Light and different screens may cause the color of the item in the picture to slightly differ from the actual one. The allowed measurement error is +/- 1-3 cm.</p>