NFO Laser light source, fault locator, power 30mW - The light source is a laser device used for quick and easy testing of fiber optic path continuity. The device is powered by two AA batteries or via an AC DC power adapter (not included). The set includes a protective cover Weight: 170g Dimensions: 175mm x 26mm x 26mm Wavelength: 650nm Output power: 30mW The length of the tested section up to: 25 km Connector: FC, ST, SC Power supply: 2x AA battery or AC DC power adapter (not included). Working time on battery pack: 40H (1mW) Working temperature: 0 60 ?