Salinity Probes that work with the Apex

Neptune
Jump to Last
I refer back to the original question: [Are there other] Salinity Probes that work with the Apex?

For instance, any of the probes offered by METTLER TOLEDO can work?
https://www.mt.com/int/en/home/prod...owse/pH-meter/sensor/conductivity-sensor.html

Even if the connector must be adapted/changed and a resistor or a simple mod must be done, I'm up for that.

I'm not interested in debating if the Neptune probe works or not, just want to know if I can get an alternative probe to work.
 
AS
This one seems very similar to Neptune's:
https://www.ebay.com/itm/362498979065?ssPageName=STRK:MEBIDX:IT&_trksid=p2060353.m1438.l2649

1646069158113.png
 
As an eBay Associate we earn from qualifying purchases.
As an eBay Associate we earn from qualifying purchases.
Ecoscape Reef Rock
Anyone ever figure anything out? Seems suspect to me that Apex stopped including the salinity probe in the new A3. Clearly they know it's an issue. FIX IT!! Take our money for something that works!! Hell I'll take something 3rd party with a way to integrate it at this point. But my probe just will not calibrate and it's reading between 3.6-3.9 - smfh
 
Tidal Gardens
Just grabbed one from eBay. Open box for $11 shipped. Will take some time to get it and play with it, but I will report my results here.
 
of course it has a different connector. I will have to inspect a broken Neptune salinity probe and hard wire the Pasco probe to the Neptune connector or try to make an adapter. I will report my progress.
 
Deltec
They should license the technology from the Hanna salinity meter. That one works great IMO.
 
Deltec
Don't take this as a sarcastic response. Let's face it - barring a major problem the salinity is not really an 'important' parameter. I'm not sure there is a reason for constant monitoring. Were I you - I would just check it manually - with any number of test kits once a week. Why? By the time you get an alert that it's low, there will be water all over the floor - and any damage will be done perhaps. The only way the salinity can rise or fall - is not enough water being added - or not enough evaporating (too much added). IME - this is rare. The use of a small ATO as compared to a constant source of water helps make sure this does not cause a problem. I know this is not a direct answer but its my opinion
 
Top Shelf Aquatics
robbyg said:
There are an awful lot of posts saying that they don't work. The two tanks that I setup for friends that have an Apex had similar issues and the owners decided to remove them due to drifting and the constant maintenance.
Click to expand...
Absolutely - They IME - do not work consistently.
 
@MnFish1 My Max s 500 has a manual ATO that I want to know if it is stuck on. Kind of just peace of mind, right? But, I think I am leaning towards dropping a Tunze ATO pump down the reservoir in the back of the tank and run it from there.

MnFish1 said:
Don't take this as a sarcastic response. Let's face it - barring a major problem the salinity is not really an 'important' parameter. I'm not sure there is a reason for constant monitoring. Were I you - I would just check it manually - with any number of test kits once a week. Why? By the time you get an alert that it's low, there will be water all over the floor - and any damage will be done perhaps. The only way the salinity can rise or fall - is not enough water being added - or not enough evaporating (too much added). IME - this is rare. The use of a small ATO as compared to a constant source of water helps make sure this does not cause a problem. I know this is not a direct answer but its my opinion
Click to expand...
 
I want to share my findings with the community.

I'm just sharing my findings, but I'm not responsible for any issues that may arise. Take this information with a grain of salt, do your own research and know that anything you do is at your own risk.

Having said that...

I found a compatible conductivity (salinity) probe. It can be found on eBay. The probe has a BNC connector, but an adapter is very easy to make. The inner pin of the BNC goes to pin 1 of the mini din 4 pin connector. The outside of the BNC goes to pin 2 of the mini din 4 pin connector. That's it. It calibrated perfectly and it has been running for hours very stable.

The probe I'm using is the following: Pasco PS-2116A PasPort Conductivity Sensor P09280. The probe comes with a module that is not required at all.

Here's a picture of the mini din 4 pin female connector with the pin numbers. Imagine you are looking at the Apex head unit and this is the salinity probe female port.

MiniDIN-4_Connector_Pinout.svg.png

My probe looks like this:

1687653791848.jpeg

The probe itself reads: Pasco Scientific 699-06621.

That's it. Cheers!
 
Last edited:
www.dinkinsaquaticgardens.com
Rimsky said:
I want to share my findings with the community.

I'm just sharing my findings, but I'm not responsible for any issues that may arise. Take this information with a grain of salt, do your own research and know that anything you do is at your own risk.

Having said that...

I found a compatible conductivity (salinity) probe. It can be found on eBay. The probe has a BNC connector, but an adapter is very easy to make. The inner pin of the BNC goes to pin 1 of the mini din 4 pin connector. The outside of the BNC goes to pin 2 of the mini din 4 pin connector. That's it. It calibrated perfectly and it has been running for hours very stable.

The probe I'm using is the following: Pasco PS-2116A PasPort Conductivity Sensor P09280. The probe comes with a module that is not required at all.

Here's a picture of the mini din 4 pin female connector with the pin numbers. Imagine you are looking at the Apex head unit and this is the salinity probe female port.

MiniDIN-4_Connector_Pinout.svg.png

My probe looks like this:

1687653791848.jpeg

The probe itself reads: Pasco Scientific 699-06621.

That's it. Cheers!
Click to expand...
Works perfectly, thanks.
 
Rimsky said:
I want to share my findings with the community.

I'm just sharing my findings, but I'm not responsible for any issues that may arise. Take this information with a grain of salt, do your own research and know that anything you do is at your own risk.

Having said that...

I found a compatible conductivity (salinity) probe. It can be found on eBay. The probe has a BNC connector, but an adapter is very easy to make. The inner pin of the BNC goes to pin 1 of the mini din 4 pin connector. The outside of the BNC goes to pin 2 of the mini din 4 pin connector. That's it. It calibrated perfectly and it has been running for hours very stable.

The probe I'm using is the following: Pasco PS-2116A PasPort Conductivity Sensor P09280. The probe comes with a module that is not required at all.

Here's a picture of the mini din 4 pin female connector with the pin numbers. Imagine you are looking at the Apex head unit and this is the salinity probe female port.

MiniDIN-4_Connector_Pinout.svg.png

My probe looks like this:

1687653791848.jpeg

The probe itself reads: Pasco Scientific 699-06621.

That's it. Cheers!
Click to expand...
Works perfectly, thanks.
 
Neptune

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

  • Yes!

    Votes: 32 45.7%

  • Not yet, but I have one that I want to buy in mind!

    Votes: 9 12.9%

  • No.

    Votes: 26 37.1%

  • Other (please explain).

    Votes: 3 4.3%
See comments…

New Posts

Dinkins Aquatic Gardens
TCK Corals
World Wide Corals
Top Shelf Aquatics
Tidal Gardens
Chewy.com
Nutramar Foods
Deltec
New Posts
Back
Top