... / 1310nm / 1490nm / 1550nmPower range (dBm)-70~+10dBm -50~+26dBmSensitivity (nVV)0.001nVVOptical interfaceFC/PC , SC ST optionalDigital multimeter (independent circuit board ... Voltage0-660V automatic/manual measure, the mini resolution reaches to 0.1mVAC/DC Current660uA , 6.6mA, 66mA , 660mA, 10AResistance660, 6.6k ...