Features 1、ACCURATE AND CONVENIENT: Fast and accurate, no need to wait for preheating, plug and play. Optical power meter has the function of relative power calculation and calibration function 2、SENSITIVE AND LOW POWER CONSUMPTION: The mini optical power meter has a sensitive chip and robust internal structure, possess low battery consumption, support continuous operation for 40 hours 3、WAVELENGTHS SPECIFICATION: Optical multimeter support wavelengths of 850, 980, 1300, 1310, 1490, 1550, and 1625nm 4、UNIVERSAL INTERFACE: Optical fiber power meter support SC, FC, ST adapters, covering most of the needs of communication engineering maintenance 5、ACCURATE MEASUREMENT: Measure optical power with a wide range from ‑70dBm to +10dBm, ensuring accurate readings for your optical devices Specification Item Type: Optical Power Meter Material: ABS Power Supply: 3 x AAA alkaline dry battery(not included) Power Measurement Range: -70~+10dBm Probe Range: For InGaAs Wavelength Range: 800-1700nm Standard Wavelength (nm): 850, 980, 1300, 1310, 1490, 1550, 1625 Display Resolution: Linear Display: 0.1%, Logarithmic Display: 0.01dBm Operating Temperature: -10~+60℃ Storage Temperature: -30~+70℃ Automatic Shutdown Time (min): 120s LCD Display Description: The measured power value is displayed in the form of dB, dBm, mW, uW, nW Package List 1 x Optical Power Meter 1 x User Manual