SUNWIN Optical Power Fiber Meter And 10mW Visual Fault Locator Fiber Optic 1.TL510C miniature handheld optical power meter:Measurement range(dBm): -70~+10dBm/-50~+26dBm Connector:Movable FC/PC SC/PC. Resolution:linerity:0.1%, NOn-linearity: 0.01dBM. Calibrated wavelength:85onm/1300nm/1310nm/1490nm/1550nm and 1625nm. Wavelength range (nm):800-1650 2. 10mW Pen-type Visual Fault Finder: Wavelength: 650nm10nm. Connector: 2.5mm universal adapter.Light source: FP-LD laser