... touch screen)PortUSB portPower supplyAC/DC (AC100 ~ 240V, 50/60Hz), DC: 8.4V, 0.5AEnvironmental requirementWorking environment temperature: 0~40°CStoring environment temperature: ... 1.3-1.5Correction coefficient of optical fiberAdjust from 0.8-1.0The accuracy of testing length± (1m+ ... sampling interval + test value×0.05%)(excluding the error due to refractive index).The accuracy ...