Very Long Distance laser vibrometers

Name ChannelsBandwidthWorking DistanceLaser ClassDatasheet
VSM4000LL30m-SCAN 1 from DC up to 100 kHz from 0.1 up to 30.0 m with autofocus 3B
VSM4000LL30m-EXT-SCAN 1 from DC up to 100 kHz and from 22 kHz up to 1 MHz from 0.1 up to 30 m with autofocus 3B