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DIGITAL PLETHYSMOMETER
DIGITAL PLETHYSMOMETER
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Designed to evaluate changes in paw volume, our Digital Plethysmometer is useful to study imflammatory response in lab animals.  The volume transducer is formed by two perspex tubes interconnected and filled with a conductive solution and a platinum electrode in each chamber.  Water displacement produced by the immersion of the animal's paw in the measuring tube is reflected in the second tube, inducing a change in the conductance between the two electrodes.  The control unit detects the change in conductance and generates an output signal to the display indicating the volume displacement measured in 0.01 ml resolution.  

The system includes the control unit, volume transducer, calibrator, 100ml solution, footswitch, software for data acquisition and instruction manual.