1.2. Can measure 8 standard wavelengths: 850, 980, 1300, 1310, 1490, 1550, 1625 nm. Test range: -70 dBm to +6 dBm. 10 mW red source. 3. Supports lighting, automatic shutdown, backlight, wavelength memory function, and calibration. 4. Supports FC/SC/ST 2.5 mm universal interface, supports RJ45 testing, supports simultaneous display of linear mW and non-linear dBm. 5. The optical power meter and VFL provide precise testing, fine workmanship, and are easy to carry. Fully replaces the traditional optical power meter and red light pen. Specifications: Material: Plastic Size: 11.8 x 6.5 cm Color: Yellow Calibration Wavelength: 8001700 nm Optical Connector: FC/SC/ST universal interface Detector Type: InGaAs Measurement Range: -70 to +3 dBm Accuracy: 0.2 dB Standard Wavelengths: 850, 980, 1300, 1310, 1490, 1550, 1625 nm Display Resolution: mW: 0.1%, dBm: 0.01 dBm VFL Output: 1 mW, 650 nm Working Temperature: -10C to +60C Storage Temperature: -25C to +70C Auto Power-Off: 10 minutes Red Light Power: 5 mW Power Supply: 2 x AAA batteries (not included) Battery Life: Up to 48 hours Package Contents: 1 x Fiber Optical Power Meter 1 x Test Rope Note: Light and display differences may cause slight color variation. Measurement error is 13 cm.