Has anybody used one of these PH Monitors?

[jeemann99]

I want to purchase a PH Monitor and was wondering if anyone has purchased or used one fo these units and what they think of it.

Thanks
Garrick

http://cgi.ebay.com/PH-MONITOR-FOR-CONTINUAL-MONITORING-OF-YOUR-AQUARIUM_W0QQitemZ7747934270QQcategoryZ20758QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

[mhurley]

Never heard of them.
I'd be concerned about the ability to replace the probe when they go bad...it doesn't look like the standard BNC connector type probes that are readily available in the US.

[Billybeau1]

Plus, you gotta know in this hobby, you get what you pay for. Good ph monitors go for about 100 bucks. I doubt this is a good buy.

Just my .02

[jeemann99]

http://cgi.ebay.com/MILWUAKEE-pH-110-ELECTRONIC-LEVEL-MONITOR-PROBE_W0QQitemZ7748978272QQcategoryZ43555QQrdZ1QQcmdZViewItem

What about this one? Does anybody use this one? Is this unit plug and play? Does it need that fluid to calibrate it? I never used a PH monitor so any opinions and advise would be great.

Thanks

[Billybeau1]

Yes, the Milwaukee and American Pinpoint monitors are among the most used I believe. They require calibrating every now and then. I have a pinpoint and use #7 and #10 calibration fluids. Plus I clean my probe once every two weeks. :)