The power2max is a wonderful power meter and we highly recommend it, however you must confirm you have a compatible Praxis crankset. If your Praxis crankset uses the direct mount interface, then yes, power2max NGeco Praxis Road Power Meter will work.
Direct mount cranksets (left image) have drive-side crank arms that can be removed from the crankset. They can also be identified by 3 bolts located on the inside of the spider which are used to secure the spider to the crank arm. Most modern Praxis cranksets are direct mount. This includes Zayante M30, Alba M30 and Zayante Carbon M30.
You must ensure your Praxis crankset uses the direct mount interface (indicated by 3 bolts on the inside of the spider) in order for the power2max power meter to fit.
Please also note the smallest inner ring that will fit on this power meter is a 34T. It is not compatible with Praxis 48/32 chain rings.
If your Praxis crankset is the standard version (not direct mount), we would recommend power meter pedals, as that is the only power meter type that will fit your crankset.