... and MM fiber FeaturesWave ID information can be transmitted when used with JW3216 Optical Power Meter.Tone generation, ... 270HZ, 330HZ, 1KHZ, 2KHZOutput power can be adjustableOutput power value is shown on LCD displayIntelligent backlight control (light ... *90*45(250g)Standard Package MODELINCLUDESAll 31163116 Optical Light Source, 3pcs 1.5V batteries, AC Adaptor, ...