You can get some quantitative data of plant spike characteristics by using time interval measurements and RMS of signal. You can hold the rightclick button (press two fingers on the trackpad on Mac OSX) and drag the mouse cursor to select the interval of the signal. When you select the interval of the signal Spike Recorder will display the length of interval in seconds. In that way you can measure some characteristic time measurements of spikes like rising time, decaying time etc.
Please take a look at section "Signal Measurements" in our manual:
As you already know, the Spike Recorder can not measure amplitude in mV. But signal is measured in units linearly proportional to mV so if you are not interested in absolute measurements in mV but just relative measurements that you will use to compare amplitude of spikes between experiments you can use RMS measurement in Spike Recorder.
If you select just a very short interval of signal at the position of peak of spike Spike Recorder will display RMS value of the signal at that point which you can use as spike amplitude measure. Please take a look at image in attachment where we got amplitude of spike as 15.553 (RMS is displayed in bottom right corner).
**The way the Plant SpikerBox works is that it doesn't send Action Potentials from one plant to another 1:1, it uses the action potential of one plant - in our case the Venus Flytrap - to trigger a relay which sends a much larger electrical stimulation to the second plant.