Measurement of the power of the optical sender (dBm and W). Insertion loss test of optical devices. Light source function. Check fiber breakage, winding,ect. New REF user-defined. FC/SC/ST general-purpose interface. Wavelength: 1310/1490/1550/ 1625nm (power meter). Wavelength:1310 / 1550nm( light source). Certification. Passes RoHS, FCC, and CE compliance testing, and it is certified to the ISO 9001 standard. 100% Affordable. Manufactured in China and a lot cheaper than competitor products with similar quality.
