The FL4 Four Pole Bessel Filter is a General purpose, high cut (low pass) filter.  It's Bessel filter characteristics are ideal for pulse-type data acquisition and analysis.  
Also available: FL8 Eight Pole Bessel Filter providing the same features, with a sharper Cut-off at the selected bandwith.  

Features  

• 12 filter settings

• 3 gain settings

• Selectable signal coupling  

• Available phase inversion  

• Low noise, external power supply  

Applications  

• Patch Clamp Recording

• Removal of background noise from pulse data

• Turn-key signal conditioning  

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