Fantasy Town Noyafa NF-919 Optical Power Meter With Light Source 6 Wavelengths Vfl Ref Sl Visual Fault Locator Light Attenuation Measurement Digital Battery Tester

NF-919 Multi-function Fiber Tester, used for optical power and related tests, mainly includes light source function, optical power test, and red light function. Product Description: Brand: NOYAFA Product Name: OpticalFiber Tester Type: NF-919 Display: Color screen Product size: 139x84x29mm Function 1: Optical Power Meter Function 2: Stable Llight Source Function 3: Red Light Pen REF reference: Yes Auto shutdown: 30 minutes Low battery reminder: Yes Power supply: 3.7V1500mA lithium battery Product Features: 1. Light Source Function (SL): switchable wavelength (1310nm, 1550nm), and switching frequency (00, 270, 1000, 2000 Hz). 2. Red light function (RL): The red light wavelength is fixed at 650nm; the frequency can be switched to 00Hz/01Hz (constantly on/flashing); 3. Optical power test function (OP): a). Can test optical power and optical attenuation value; b). Switchable units dBm/mW/uW/nW; c). Switchable wavelength 850/980/1270/1300/1310/1490/1550/1577/1625/1650nm. d). REF switch: REF is used to test the attenuation value of light (i.e. relative power (loss) test)