QUICK AND ACCURATE: The fiber optic power meter has extremely high accuracy. Meanwhile, the number of kilometers can be selected, the light source is strong, and it is drop-resistant and durable. And, note: pay attention to safety protection when using. FUNCTION:The fiber optic cable tester has 7 wavelengths, 850nm, 980nm, 1300nm, 1310nm, 1490nm, 1550nm, 1625nm. At the same time, the portable optical fiber power meter can be replaced with different interfaces, and the operation is simple and convenient. AUTO POWER OFF: The portable optical power meter has an automatic shutdown function , which automatically shuts off after ten minutes of inactivity, extending usage time. It also has a compact and portable design, ensuring a better hand-held feeling. Low power consumption: The fiber light meter has a long standby time, and the battery can be used for at least 40 hours. At the same time, the detail means the profession, a distinct result or the information display ensures the satisfaction of the user experience. 100% GUARANTEE: We promise every customer satisfaction 100% purchase, please don't hesitate to contact us if you have any questions about your purchase. If you have any questions, please do not hesitate to contact our customer service. We will give you a professional and detailed response within 24 hours. Click to buy now!