Spirometry Flow can be measured using either the Spirometer Amplifier (FE141) or the Spirometer Pod (ML311) with a suitable flow head.
The Spirometer Amplifier offers a number of advantages over the Pod when recording data for research purposes. The amplifier contains a precision differential pressure transducer. This makes the amplifier less susceptible to temperature drift than the pod (0.05% full scale per C°). The amplifier has a greater number of amplification ranges, ± 20mV to ± 500mV in five range steps, offering better resolution and more accuracy for the calculated Volume values. Additionally, the amplifier has a wider range of Low-Pass filtering options (1, 10, and 100 Hz), and has greater long term stability than the pod.
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