3 in 1 Mini Fiber Optic Power Meter - with OPM (-70~+10 dBm), VFL (15mW) and RJ45 network testing functions, no need to bring separate testers, more convenient and efficient for your field workSpecification for Optical Power Meter OPMMeasurement Range: -70~+10 dBmCalibrated Wavelength: 850/980/1270/1300/1310/1490/1550/1577/1625/1650nmSensor Type: AsAccuracy: 0.2 dBPower Measurement Linearity: 0.1 dBDisplay Resolution: 0.1 dBConnector: Universal jointSpecification for Visual Fault Locator VFLOutput power: 15mwRange: 15-km@SMConnector: 2.5mm UniversalWavelength: 650nm30nmOutput modes: Continuous (CW), 1Hz/2HzPower Source: Li-ion batteryColour:gray-whiteMaterial:plasticPackage Contents:1 x Optical Power MeterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.