Can I use the M2 as a static recorder?

You can, but probably shouldn’t.

It has the functionality (passive monitoring profile) to be used as a static recorder, but it isn’t as waterproof as a static device. So it’s meant for attended use.

It comes with a tripod mount on the back, so it has the ability to be left on a tripod covering a building aspect, for example.

M2 tripod mount

If you need a detector for static surveys, where you leave the detector in the field, you should consider using another device.

More about: