Just adding an update, as I have been using my Mastertronic for about 10 months. After some trial and error, I have dialled things in to test all parameters approximately once a week, with exception of Alkalinity which is measured twice a week. So far, my unit has run 314 tests.
I have not changed the hoses, or needles yet, but should likely do so soon according to manufacturer recommendations. So far all parts appear to be holding steady,
I find the parts are not easily accessible from the manufacturer in Canada, but can be ordered online through other sources.
The silicone toppers for the vials have needed to be replaced, especially the one used for the phosphate reagent. It lasted about 6 months. I did source some replacements through Ali-Express, but these are not an exact fit and work alright.
There is regular calibration alerts so at these times I also verify that all parts are working as expected. During this time, I also refill the reagents, do some maintenance, empty waste container, and refill RODI water.
There have been a couple times when I have lost a wifi connection to the unit where I cannot see the recent parameter readings on the app. After unplugging the Mastertronic unit for about 30 seconds, it reboots and the wifi connections restore and communicate all updates with the app. Not a big deal, as this happens rarely.
Focustronic listens to feedback from their Facebook group and is regular adding updates to make the Mastertronic better. Most notably- they added the API Nitrate and the Red Sea Alkalinity tests. This uses less test vial bottles and increases capacity so users can add another test like Iodine.
I have had good luck with the API test kits, these are cheap and are readily available.
Hats off to Focustronic, whenever I have had questions they have always been responsive.
There are also specific YouTube videos posted by the developer,
@ReefJonas - Jonas Roman- he provides users with tips about getting the most out of their Mastertronic. You need to search through his uploads, but there is valuable information to be found.
So- I still am very impressed with my Mastertronic and look forward everytime my Mastertronic provides regular test results from my system. So far the most valuable tests have been Alkalinity, Nitrate, and Phosphate. I can really see the nutrient consumption of Nitrate and Phosphate and manage accordingly through dosing and feeding.
The downside is the app is slow and needs improvements, however it works good enough for it’s purpose. The unit is loud and won't win and quiet sound competitions.
The results speak for themselves in my 220 gallon sps dominant tank. It has been thriving with rock stable parameters, great growth, polyp extension, and vibrant colours. I sold enough frags over a few months to easily cover the cost of this great piece of technology.
www.reef2reef.com
