I am so tired of them drop test. I've been searching them electronic testers. Do you need to buy them seperately or do they have some that does more then one? I'm trying to come up with some birthday ideas.
The ac jr will do calc, ph, temp and a coupld other things I think. Just google neptune systems. I will never ever have another tank without some sort of controller...
I just got an ACjr.Bought it used,but I love it.
So far I've only got the PH probe but will have the temp probe within a couple of weeks.
The ACjr just tests PH,temp,and ORP(redox potential)I think.But you can time your lights with it,use it to run a chiller and or heater,control a calcium reactor,wave maker,about any thing you'd want on a controller.
I've heard that the nitrate monitors aint that accurate.Look into a photometer for phosphates.
If you are running ozone, you must monitor/control your ORP - oxidation reduction potential. An ORP controller turns an ozone reactor on and off within the recommended ranges of about 375-450mV.