Features n Self Calibration n Set the Auto Off n Wavelength Memory function after turn off the tester Features n Self Calibration n Set the Auto Off n Wavelength Memory function after turn off the tester n High Accuracy, high ,High sensitivity, high linearity n Stable VFL Output n USB Charge port n FC,SC Connector n 18650Li-ion Battery n Lower power consumption design, long standby time Rubber Out shell, increased the protective properties for field work n High Accuracy, high ,High sensitivity, high linearity n Stable VFL Output n USB Charge port n FC,SC Connector n 18650Li-ion Battery n Lower power consumption design, long standby time Rubber Out shell, increased the protective properties for field work