Well said Tony, just another toy if you want my opinion.
Any experienced aquarist will know when Ca levels are droping by natural factors within the reef. For example I know my Ca levels are good when the tips of both my digitata and birdsnest corals are a nice bright white, if they discolor and turn slightly grey then I know the level is dropping.
Toy's are fun however
, so I will wait and see what kind of features this new monitor provides.