Feature: 1. Integrate optical power meter and visual fault locator to meet any FTTX application. 2. Optical power meter measures dBm, dB and uW in following wavelength ranges: 850nm, 1300nm, 1310nm, 1490nm, 1550nm and 1625nm. 3. The visual fault locator uses CW mode and Modulation mode to help detect optical cables up to 10 km long. 4. Measurement range of optical power meter is 800‑1700nm, and the InGaAs probe is used with high measurement accuracy. 5. Support SM MM fiber type, easy to use, small and portable, long service life. Specification: Item Type: Optical Power Meter Material: ABS Optical Power Meter: Model: KPM-53 Wavelength Range: 800-1700nm Probe Type: InGaAs Power Measurement Range: -70-+10 Uncertainty: ±5% Fiber Type: SM MM Standard Wavelength: 850nm, 1300nm, 1310nm, 1490nm, 1550nm, 1625nm Connector: FC/SC Display Resolution: Linear Display: 0.1%, Logarithmic Display: 0.01dBm Red Light Source: Working Wavelength: 650nm±10nm Light Source: FP-LD Output Power: 1mW, 10mW, 20mW Connector: 2.5mFC/PC Universal Adapter Working Mode: CW Continuous Light or Modulated Light Modulation Frequency: 2Hz Working Temperature: -20℃ - +75℃ Storage Temperature: -40℃ - +85℃ Automatic Light Machine Time: 10Min Battery Continuous Working Time: 100H (Backlight Off State) Power Supply: 3 x AA Battery (Battery Not Included) . Package List: 1 x Optical Power Meter (Battery Not Included)1 x Screw Accessory1 x Manual