Wavelengths supported: this optical power meter tests standard wavelengths of 850 nm, 1300 nm, 1310 nm, 1490 nm, 1550 nm and 1625 nm, covering most communications maintenance requirements. Universal interface: supports FC, SC, and ST adapters. The body is ergonomically designed for comfortable handling. Multifunctional: includes relative power calculation, calibration, automatic range conversion, and battery power display for practical, everyday use. Sensitive and precise: built with a sensitive chip and robust internal structure for fast, accurate measurements. No preheating required; plug-and-play operation. Typical applications: - On-site optical link verification in telecom networks, FTTH, and data centers, checking power at multiple standard wavelengths. - Calibration and commissioning of optical transmitters/receivers, including relative power measurements. - Troubleshooting fiber links by quickly assessing power across wavelengths to locate issues.