Features [Universal Interface Design] With its universal interface design, this fiber power meter is adaptable to SC, ST, and FC interfaces, making it an ideal tool across multiple applications. [Threshold Settings] The optical power tester offers threshold settings and automatic judgement. When measurement results fall below the set threshold, the device alerts the user with a red warning display on the screen. [Network Testing Capabilities] This fiber optic power meter supports network testing, precisely measuring network line sequences, determining signal transmission to ensure network reliability. [Convenient LED Light] Equipped with LED light, this mini optical power meter is convenient for line construction in the dark, making it user friendly while ensuring accuracy. [Multi Wavelength Testing] The optical power meter supports 7 different wavelengths (850 980 1300 1310 1490 1550 1625nm), with automatic memory function, ensuring efficient operation. Specification: Item Type: Optical Fiber Power Meter Material: ABS VFL Function: 10mw Network Test Interface: RJ45 Wavelength Range: 800-1700 (nm) Probe Type: InGaAs Interface: 2.5mm universal interface Power Measurement Range: -70~+6 dBm Accuracy: ±0.2dB Standard Wavelength: 850, 980, 1300, 1310, 1490, 1550, 1625 (nm) Display Resolution: 0.01dB Operating Temperature: -10 ~ +60 (℃) Storage Temperature: -25 ~ +70 (℃) Auto Power off Time: 10 minute Power Working Time: Charging Version: 60 hours (only for power meter operation) LED Flashlight: Support Power Supply: 3.7V rechargeable lithium battery 800mAh x 1 (built in) Size: Approx. 112x57x31mm / 4.41x2.24x1.22in Package List: 1 x Optical Fiber Power Meter 1 x Carrying Bag 1 x USB Cable Package List 1 x Optical Fiber Power Meter 1 x Carrying Bag 1 x USB Cable