Mini rechargeable high-precision optical power meter: with four in one function, optical power meter, VFL, LED light, RJ45 network testing High precision optical power testing, high-precision high-quality detector, measurement error less than+0.2dB (user can manually calibrate) The hidden RJ45 tester is compact and beautiful, convenient to carry and test anytime, anywhere The mini light power meter is equipped with LED light function, making it easy to check the wiring during construction in dark environments. It has 500 sets of data stored and viewed at any time The mini optical power meter adopts a rubber coated anti drop design, which is not easily damaged by falling Colour:Green Material:Plastic Package Contents: 1 * Rechargeable Mini Optical Power Meter Only 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.