Features BEAUTIFUL AND PRACTICAL: Network cable tester shape design meet ergonomic requirements, using advanced cold molding process, beautiful and durable. EXCELLENT PERFORMANCE: Optical multi meter is made with fine workmanship, possess compact appearance and stable performance, can make sure durability and stability. VARIOUS FUNCTIONS: The optical power meter has a small shape, automatic switching function, power adjustable, wavelength memory function, automatic identification of working frequency, support lighting, storage and other functions. WIDE APPLICABLE: Optical power meter is widely used in optical cable construction and maintenance, optical fiber communication, optical cable sensing, optical CAT and other fields. SUPPORT TEST: Fiber power meter support user calibration and SC, FC and ST interfaces; Support linear(nW) and nonlinear index(dB); Support RJ45 test. Specification: Item Type: Optical Power Meter Power Meter Detector Type: For InGaAs Power Meter Interface: 2.5mm universal interface Calibration Wavelength: 630-670nm Measuring Range: Type C (-50~+26dBm) Resolution: 0.01dB Accuracy: ±0.20dB Frequency Identification: 270, 330, 1K, 2KHz Wavelength Recognition: Support(need to be used with compatible light sources) Red Light Source Interface: FC, SC, ST 2.5mm universal purpose Red Light Source Output Power: <30mW LED Flashlight: Supported Network Cable Sequence Check: RJ-45 port Data Interface: Type C interface Battery: 1 x 3.7V lithium battery(450mAh) Storage Temperature: -20-60℃, <90%RH Operating Temperature: -10-60℃, <90%RH Package List: 1 x Optical Power Meter 1 x Data Cable 1 x User Manual 1 x Lanyard Package List 1 x Optical Power Meter 1 x Data Cable 1 x User Manual 1 x Lanyard