Feature: 1. Applicable Range: The measurement range of this optical power meter is 7010dbm, with a wavelength response range of 8501650nm, has high accuracy and resolution, providing reliable optical power measurement. 2. Stable and Practical: This portable optical power meter provides stable output with 3 modulation frequency. Handheld design for convenient and comfortable grip, which is easy to operate. 3. Universal Interface: This tester provides red light port and optical power port. Universal 2.5mm interface, including SC connector. An ideal telecommunications and cable TV maintenance tool. 4. Protective Case Design: This fiber optic power meter has a protective casing design and is wrapped in black soft glue, effectively preventing falls or collisions, greatly extending its service life. 5. Wide Application: This optical power meter is compact and portable, convenient for use anytime and anywhere, and widely suitable for telecommunications and fiber maintenance projects. Specification: Item Type: Optical Power Meter Power Detector Type: InGaAS Wavelength Response Range: 850-1650nm Measurement Range: -70 to +10dbm Resolution: 0.01dB Accuracy: ±2dB Power: 5mw Connector Type: Red Light Port, Optical Power Port Battery Type: 3 x AAA Battery (not included) Operating Temperature: -10 to +60℃ Frequency Recognition: 270HZ, 330HZ, 1kHZ, 2kHZ Red Light Source Interface: 2.5mm Universal. Package List: 1 x Fiber Optic Power Meter