Versatile Fiber Optic Tool Kit: Our Fiber Optic Tool Kit includes a Mini Fiber Optical Power Meter, specifically designed to measure power levels ranging from -70 to +6 dBm. Extended Battery Life: The Fiber Optical Power Meter operates on 2 x AA Alkaline batteries, providing more than 40 hours of continuous working time. Dual Display Modes: The intuitive design features a linear display (mW) and logarithmic display (dBm) that show on the same screen, allowing for easy interpretation of results. User-Friendly Interface: Our Fiber Optic Power Meter supports FC/SC/ST interfaces with a quick switch feature, making it easy to connect and use. Robust Performance Specifications: Designed to operate within a temperature range of -10 to +60°C and store safely between -25 to +70°C. With an auto switch-off time of 10 minutes and a compact size of 40*25*130 mm.