Product Name: Optical light source Model: KD-530M Brand/ Origin: China Description: KD-530 handhold optical light source is applied FP-LD as emitter. Adopted the outstanding technique of same type of products, it can provide 1 to 4 wavelength output according to the specific requirements including the 650nm red source, 1310/ 1550nm wavelength for the single mode fiber and 850/ 1300nm wavelength for the multimode fiber. Together with KD-530 optical power meter, it acts as a perfect solution for the fiber optic network. Specifications: Type KD-530M Wavelength nm 850/ 1300 Emitter Type FP-LD Output Power dBm 0 at 650nm is 0 dBm / -7/ -7 Modulation Frequencies CW / 2Hz ( 650) / 270Hz, 1KHz, 2KHz ( 1310, 1550) Fiber Type SM , MM Optical Connector FC ( Universal adapter) Power supply Alkaline battery ( 3 AAA 1.5V battery ) Operating temperature ° C -10~ + 60 Storage temperature -25~ + 70 Battery working hours h 45 Dimension mm 148× 74× 28 Weight g 225