Originally Posted by nim75sg

This is my latest toy acquired 3 weeks ago but only finally managed to get a chance to use it.

My review would be not as sosphicated as Randy from Reefkeeping but at least it provides a certain aspect in terms of practicality.

IMO overall the Calcium Monitor is affordable and pretty accurate since it is powdered by a 9-volt battery. Funny that the vendor can't afford to supply this with the unit.

Based on past experiences with AM PinPoint pH monitor, the monitor will operate continuously about 150 hours before replacing the S$4.50 9V battery when the "low battery" indicator is on the display.

Also I find it rather unusual that the vendor advise to store the probe with tap water in the plastic storage bottle cap. Instead, I am storing the proble using DI water.

Warranty in perspective, American Marine is providing 24 months free of defects from date of sale eg. LCD display segments missing.