Apex Salinity Probe Replacement Options

[Alexr54]

Does anyone have any salinity probe replacement options for the Neptune Apex, which is not from Neptune?
Mine is going on a couple years old and has started acting up recently (with no stray voltage).

Neptune stuff seems to always have a large markup on the prices, considering what you get. Was wondering if any other salinity probe manufacturer can be recommended to be used with the Apex controller?
Or is it just best to bite the bullet and get the Neptune salinity probe?

 

[Formulator]

You can use any double junction pH probe as the connection is universal, but you will likely find the markup from neptune is actually not that significant. pH probes look deceivingly simple, but there is actually a fair bit of complexity and delicacy to their construction so they aren’t as cheap as they may appear.

 

[Randy Holmes-Farley Verified Community Expert]

Think he is asking about the salinity probe.

I don't know what their cord is like. That will determine what can be used.

 

[Formulator]

Think he is asking about the salinity probe.

I don't know what their cord is like. That will determine what can be used.

Ah, yes. Sorry I misread.

 

[lakai]

Does anyone have any salinity probe replacement options for the Neptune Apex, which is not from Neptune?
Mine is going on a couple years old and has started acting up recently (with no stray voltage).

Neptune stuff seems to always have a large markup on the prices, considering what you get. Was wondering if any other salinity probe manufacturer can be recommended to be used with the Apex controller?
Or is it just best to bite the bullet and get the Neptune salinity probe?

There is a whole thread on this but you are better off just biting the bullet and buying a neptune one so you don't have to solder a connector as no one knows the pinout anyway.

https://www.reef2reef.com/threads/salinity-probes-that-work-with-the-apex.653584

 

[Lbrdsoxfan]

There is a whole thread on this but you are better off just biting the bullet and buying a neptune one so you don't have to solder a connector as no one knows the pinout anyway.

https://www.reef2reef.com/threads/salinity-probes-that-work-with-the-apex.653584

Yes we did figure out the pinout. I've been using a pasco probe for about a year with no issues. To the OP, read through the thread, a few of us got around the proprietary crap from Neptune.

 

[lakai]

Yes we did figure out the pinout. I've been using a pasco probe for about a year with no issues.

can you provide the link to the pinout ? Thanks

 

[Lbrdsoxfan]

can you provide the link to the pinout ? Thanks

Read the thread

 

[Bruttall]

Yes we did figure out the pinout. I've been using a pasco probe for about a year with no issues. To the OP, read through the thread, a few of us got around the proprietary crap from Neptune.

Link to probe?

 

[Lbrdsoxfan]

Link to probe?

Again, the info is in the thread. Requires some diy. Start @ post #58.

 

[kylarse]

Try this, it has the correct probe. I modified the earlier version that had a bnc connector and it's been working for over a year. Looks like they now have one with the right connector now.


I just found this on AliExpress:
$48.00 | Conductivity probe with connector mini Din 4 PIN Salinity sensor electrode Cell constant 10 Reef Aquarium Marine water customize
https://a.aliexpress.com/_mrwOciR

 

[Texas_Reefer97]

Try this, it has the correct probe. I modified the earlier version that had a bnc connector and it's been working for over a year. Looks like they now have one with the right connector now.


I just found this on AliExpress:
$48.00 | Conductivity probe with connector mini Din 4 PIN Salinity sensor electrode Cell constant 10 Reef Aquarium Marine water customize
https://a.aliexpress.com/_mrwOciR

How does this work? Thinking of purchasing it.

 

[kylarse]

How does this work? Thinking of purchasing it.

Been working great since I installed it. Calibrated easily and has stayed in calibration. No bubbles with this tip design, so better than the original in that aspect. Buy one, you won't be disappointed.

 

[Texas_Reefer97]

Been working great since I installed it. Calibrated easily and has stayed in calibration. No bubbles with this tip design, so better than the original in that aspect. Buy one, you won't be disappointed.

Thank you so much! What do you recommend for PH? And is it worth getting the ORP probe?

 

[TangerineSpeedo]

Been working great since I installed it. Calibrated easily and has stayed in calibration. No bubbles with this tip design, so better than the original in that aspect. Buy one, you won't be disappointed.

Just bought one. Thanks for the heads up!

 

[kylarse]

Thank you so much! What do you recommend for PH? And is it worth getting the ORP probe?

Any double junction pH probe will work, same with ORP. you just need a BNC connector. Don't bother with the ORP, not really useful.

 

[DiscoStuart]

Just bought one. Thanks for the heads up!

How has it worked for you? Mine keeps drifting after calibration.

 

[TangerineSpeedo]

How has it worked for you? Mine keeps drifting after calibration.

I have yet to hook mine up. But you may need one of these...
https://vividcreativeaquatics.com/shop/sps-kit-the-salinity-probe-shield/

 

[DiscoStuart]

I have yet to hook mine up. But you may need one of these...
https://vividcreativeaquatics.com/shop/sps-kit-the-salinity-probe-shield/

Yeah, might need to. The idea of yet another pump drives me a bit crazy

 

[TangerineSpeedo]

Yeah, might need to. The idea of yet another pump drives me a bit crazy

Just a wafer thin pump...