Optical light source for singlemode fiber testing KLS-35Optic fiber power meter KomShine KPM-35 FTTH fiber cable tester w/ Silicone case. Resolution (dB):0.01 Attention: Choose the correct model that you need. The KPM-35 Power Meter provides highly accurate power measurements, as well as reference value setting capabilities. Whats 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+3dBm / -50~+26dBm 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 Standard Accessories: User guide1PC Certificate of Qualified1PC SC Connectors1PC Guarantee card1PC Soft carry bag1PC The KomShine KLS-35 Light Source provides excellent stability and high measurement accuracy for up to two single mode wavelengths or two multimode wavelengths. It is the perfect complement to the KPM-35 Power Meter when it comes to measuring attenuation on fiber-optic links 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