Perfect!
Here's your parts list.
Controller
Since you're monitoring parameters with those probes and also have an EB, I'd go with the:
- ProfiLux 4 Mega Set; this comes with the probes (temp, pH, redox, conductivity), calibration fluids, 6-outlet powerbar, and connection cables
- If you need to control more than 6 outlets, you can add an additional Powerbar-6E (PL-1725) for 6 more outlets
- A PAB-cable would also be needed as this will allow you to physically connect the additional powerbar to the P4 system. PAB cables are offered in lengths ranging from 1.5ft - 150ft.
ATO control
There are a couple ways to accomplish this...you can either use a dedicated ATO pump and plug it into one of the powerbar outlets
OR you can use a GHL dosing pump for ATO purposes.
As for the actual parts, here's what you'd need:
- 1x GHL sensor; either float (PL-0077) or optical (PL-0082)
- 1x GHL matching bracket for the float (PL-0080) or optical sensor (PL-0723)
- 1x Level sensor assembly rod (PL-1095); holds the float or optical sensor in-place in your sump
AWC control
Since you're managing this task with a dosing unit, the best match would be the
- GHL Doser Maxi Slave; two pump heads for removing old SW and adding new SW
- PAB-cable; physical cable that links the Maxi to the P4 system
The standard way of doing AWC with the ProfiLux is to do it with our float or optical sensors. Although some users choose to skip the sensors and do their WC with normal dosing schedules, we recommend using our sensors because it provides an additional layer of safety with our
Max on-time feature which is the built-in failsafe.
For standard AWC, you would need these additional parts:
- 1x GHL sensor; either float (PL-0077) or optical (PL-0082)
- 1x GHL matching bracket for the float (PL-0080) or optical sensor (PL-0723)
- 1x Level sensor splitter cable (PL-0081)
This will allow you to double-up the existing ATO sensor and also use it for AWC purposes. That way, you have the upper sensor which manages your ATO and your AWC max fill point and the lower sensor which handles the AWC max drain point.
Low water level detection for return section
- 1x GHL sensor; either float (PL-0077) or optical (PL-0082)
- 1x GHL matching bracket for the float (PL-0080) or optical sensor (PL-0723)
This will ultimately give you a total of 3 sensors, all which can be placed on the same level sensor assembly rod. If you would rather keep this sensor away from the ATO/AWC sensors, you will also need:
- 1x Level sensor assembly rod (PL-1095); holds the float or optical sensor in-place in your sump
Alkalinity testing
We don't require you to test a minimum of 4x per day. If you want, you can test 1x day or on an as-need basis to conserve some reagent fluid.
- KH Director Slave set
- PAB-cable; physical cable that links the KHD set to the P4 system
Cost per test can be as little as 0.03 cents / test.
500ml bottle can last up to 3 months with 2 tests per day depending on each test result
1000ml bottle: 6 months
Calcium, Magnesium, Nitrate, Potassium, Sodium testing
The ION Director can take care of this for you.
- ION Director Slave set
- PAB-cable; physical cable that links the KHD set to the P4 system
Cost per test can be as little as 0.25 cents for all parameters
500ml bottle can last about 1.5 months with 2 tests per day depending on each test result
1000ml bottle: About 3.5 months
Flow pump control
Unfortunately, the WAV pumps are not compatible with the ProfiLux because they each use a different communication method.
Calcium reactor control
The ProfiLux can control this when you have the solenoid power plug connected to one of the powerbar outlets. You would also need an additional pH probe which will be installed into the CaRx. If you already own a probe, you can use what you already have as long as it has a BNC connector.
The unique thing about the P4 is its capability to convert an existing Redox port into a pH port. If you don't think you'll use the Redox probe, you can easily switch that port over to pH mode and connect your pH probe to it, then calibrate it with the proper fluids. In that case you wouldn't need anything else.
If you will use the Redox port, then you will need an expansion card which gives you the additional pH port.
We have quite a bit of options here,

Choose one:
- PLM-pH/Redox (PL-0808); this is a single port card which can be switched between pH and Redox mode
- PLM-pH-Redox (PL-0006); 2 ports, one for pH and one for Redox
- PLM-pH/Redox - Cond (PL-0977); 2 ports, one switchable pH/redox port and one switchable conductivity port
- PLM-CondS-pH (PL-0099); 2 ports, one for conductivity SW range and one for pH
- PLM-pH/Redox-2Level (PL-0871); 2 ports, one switchable pH/redox port and one Level sensor port
- I recommend this one for you since it gives you the option to add even more float, optical, leak, or flow sensors later down the road.
- PLM-pH/Redox-DigTemp (PL-1258); 2 ports, one switchable pH/redox port and one digital temperature port
Take your time with the information. I know I just threw a lot at you.
If you have any other questions, feel free to reach out. We're here to help.