1,[Wide Measurement Range] The fiber optic power meter offers a measurement range of ‑70 to and10dBm and wavelength response range of 850 to 1650nm for accurate power measurements. 2,[10mW Red Light Source] Equipped with a stable light source of 10mW red light for visual fault location, this power meter ensures accurate and efficient testing. 3,[Universal 2.5mm Interface] Featuring a universal 2.5mm interface, including SC connector, this fiber optic power meter is compatible with a wide range of fiber optic devices for versatile use. 4,[Anti Drop] Designed with a shockproof protective cover, this power meter effectively guards against drops and collisions, safeguarding the device from damage. 5,[Versatile Usage] Serving as an essential tool for telecom and cable TV maintenance testing, this fiber light power meter provides reliable and accurate measurements for professional applications. Item Type: Optical Fiber Power Meter Material: ABS OPM Detector Type: InGaAS Wavelength Response Range: 850-1650nm Measurement Range: -70 to and10dbm Resolution: 0.01dB Accuracy: ±2dB Power: 10mw Connector: Red Light Port, Optical Power Port Battery Type: AAA x 3 (Batteries Not Included) Operating Temperature: -10 to and60℃ Frequency Recognition: 270Hz 330Hz 1kHz 2kHz Red Light Source Interface: 2.5mm Universal 1 x Optical Fiber Power Meter