feature: 1. Optional 6 test wavelengths: 6 different test wavelengths can be adjusted to set 850nm/980nm/1310nm/1490nm/1550nm/1625nm Simultaneous LCD screen display 2. Optical power measurement: Connect the fiber to be tested to the optical power connection and switch to the corresponding wavelength by short preing: WAVE key and measure the power at the same time 3. Suitable for: a variety of interface fibers are suitable for FC, ST, SC interfaces 4. LED lighting function: LED flashlight lighting function is convenient for construction in dark environment 5. Automatic shutdown function: humanized design, automatic shutdown after 30 minutes of no operation 6. USB lithium battery direct charge: 700mAh lithium battery can last longer and last longer 7. High-definition LCD screen: obvious high-definition display handwriting is clear specification: Model: NF-908 Wavelength: 850/980/1310/1480/1550/1625nm Measuring range: -60~8dbm Accuracy: 850/980nm 0.5dB other 0.3dB Alignment: yes Hunting: none Red light: none REF reference: yes LED lighting: yes Timed shutdown: 30 minutes Battery: Lithium battery 3.7V 700mAh Package Included: Remote adapter*1 NF-908*1 Charging cable*1 Manual*1