I have the Aeotec MS 6 and use it in my home generator to detect vibration (that way I know when it runs it's weekly exercise cycle). When the generator runs, the accelerometer shows as Active, but the notification I have setup to alert me nevers triggers. I have tried the temperature notification on the same device and it works fine.
It worked months ago. I have already reset the MS and set it back up to no avail. No additional variables set.