Check the listing for details. Komshine FTTH Fiber Cable Tester Optic Power Meter KPM-35 & KLS-35 Light source. Condition: New. Listed at 29.90 USD. Komshine Optical Fiber Power Meter KPM-35 & KLS-35 Optical Fiber Light SourceKPM-35 Optical fiber power meter:The KPM-35 Power Meter provides highly accurate power measurements, as well as reference value setting capabilities. What’s more, this convenient unit requires no offset nulling, and it offers power autonomy of 55 hours, for reliable, long-lasting performance in the field. Specifications: Wavelength(nm):800~1700nm Measurement Range:-70+6dBm Optical Connector:SC 2.5mm universal (1.25mm for LC is Optional) Power Supply:Alkaline Battery(3 AA 1.5V batteries) Display Units:dB / dBm / w Resolution (dB):0.01 Dimensions/Weight:160x85x45mm / 220g KLS-35 Optical fiber light source: The KLS-35 fiber optic light source is characterized by stable output optical power, wavelength and spectral width with a small range of stable changes. Provide single-mode fiber measurement (1310nm/1550nm) dual-wavelength laser output and multi-mode fiber measurement (850nm/1300nm) dual-wavelength laser output, and can also provide single and multi mode (850nm/1300nm/1310nm/1550nm) four-wavelength laser output And (1310nm/1490nm/1550nm) three-wavelength laser output. Mainly used for FTTX network and fiber optic testing. When combined with Optical power meter, it is used to measure optical power and end-to-end optical loss. Specifications: Wavelength(nm):1310+1550nm Typical Output Power:-5dB Optical Connector:FC+SC+ 2.5mm universal (1.25mm for LC is Optional) Power Supply:Alkaline Battery(3 AA 1.5V batteries) Output Stability:±0.05dB/15mins; ±0.1dB/ 8hours Modulation Frequencies:CW,270Hz,1KHz,2KHz Dimensions / Weight:160x85x45mm / 220g Specifications: Wavelength(nm)1310+1550nm（KLS-35-S)850+1300nm（KLS-35-M)850+1300+1310+1550nm（KLS-35-MS)1310+1490+1550nm（KLS-35-PON)Output Power-5dBOptical ConnectorSC+ 2.5mm universal (1.25mm for LC is Optional)Power SupplyAlkaline Battery(3 AA 1.5V batteries)Output Stability±0.05dB/15mins; ±0.1dB/ 8hoursModulation FrequenciesCW, 270Hz, 1KHz, 2KHzDimensions / Weight160x85x45mm / 220g