... minutes Auto-off -User self calibration -Type: Power Meter Optical Optical Power Meter TW3208 is used for absolute optical powermeasurements as well ... -condensing)Dimension(mm)175x82x33Weight(g)310MODELINCLUDESAll TW3208 ModelsTW3208 Optical Power Meter, Protective Rubber Boot, 3pcs 1.5V batteries,Instruction Manual, ... Netcom in Brazil, ECOC in Europe, etc Fiber Optic Power Meter Fiber Optic Power ...