Stainless steel temperature probe

aj741986

Community Member
View Badges
Joined
Jul 29, 2016
Messages
66
Reaction score
26
Hey I'm thinking about using a stainless steel temperature probe in my water make up station. I think it would be ok but figured I'd ask the community for their input.
 
Corals.com
Top Shelf Aquatics

Miller535

Valuable Member
View Badges
Joined
Dec 11, 2019
Messages
2,106
Reaction score
1,801
Location
Pittsburgh, Pennsylvania
I'm curios, why those "expensive" brands like Neptune only offer plastic made probes?

Also, all temperature controllers that I've seen have plastic probes.

I do not know for sure, this is just my guess. But the stainless steel things I have had in my tank, like my grounding probe, get gunked up really quickly and get a buildup on them that is really hard to clean off. The things like the apex plastic grounding probe do not seem to get that. That thick build up would likely mess up it's accuracy of temp readings.
 

Adamantium

Well-Known Member
View Badges
Joined
Sep 10, 2018
Messages
767
Reaction score
460
I use InkbirdSmart temp controllers in my tanks, but I spray the probes with plastidip before putting them in. Better safe than sorry.
 

Randy Holmes-Farley

Reef Chemist
View Badges
Joined
Sep 5, 2014
Messages
40,321
Reaction score
28,488
Location
Arlington, Massachusetts, United States
For very long submersion (years), I would put my probes into normal flexible tygon tubing just big enough to fit, and doubled it over with the ends above water so the probes stayed dry. I had both stainless steel and plastic thermistor probes fail after long continuous contact with water.
 

enb141

Active Member
View Badges
Joined
May 20, 2018
Messages
116
Reaction score
27
For very long submersion (years), I would put my probes into normal flexible tygon tubing just big enough to fit, and doubled it over with the ends above water so the probes stayed dry. I had both stainless steel and plastic thermistor probes fail after long continuous contact with water.

I was thinking something like that, I was thinking to put the probe in a PVC housing so to test only the surrounding temperature inside the PVC housing, I don't know if there's a huge difference in temperature from the PVC and the water surrounding it.

I was also thinking using a laser beam to read the temperature of the water in the sump.
 
Corals.com

Randy Holmes-Farley

Reef Chemist
View Badges
Joined
Sep 5, 2014
Messages
40,321
Reaction score
28,488
Location
Arlington, Massachusetts, United States
I was thinking something like that, I was thinking to put the probe in a PVC housing so to test only the surrounding temperature inside the PVC housing, I don't know if there's a huge difference in temperature from the PVC and the water surrounding it.

I was also thinking using a laser beam to read the temperature of the water in the sump.

Laser? You mean infrared sensor?
 

Lasse

5000 Club Member
View Badges
Joined
Mar 20, 2016
Messages
7,061
Reaction score
21,356
Location
Källarliden 14 D Bohus, Sweden
I was thinking something like that, I was thinking to put the probe in a PVC housing so to test only the surrounding temperature inside the PVC housing, I don't know if there's a huge difference in temperature from the PVC and the water surrounding it.

I was also thinking using a laser beam to read the temperature of the water in the sump.
If you do not have fast changing in the temperature - it will works well

If you will use a infrared sensor for the temperature in your sump - be sure that you make a black area on the sumps outer wall. Measure against that black area - you can´t use a reflecting surface if you use a infrared sensor. If you do - you will also read the reflecting infrared radiation from other sources. Very few people know this and wrong readings with these type of equipment is very common - as we say in Sweden - it is working days food :D

sincerely Lasse
 

enb141

Active Member
View Badges
Joined
May 20, 2018
Messages
116
Reaction score
27
If you do not have fast changing in the temperature - it will works well

If you will use a infrared sensor for the temperature in your sump - be sure that you make a black area on the sumps outer wall. Measure against that black area - you can´t use a reflecting surface if you use a infrared sensor. If you do - you will also read the reflecting infrared radiation from other sources. Very few people know this and wrong readings with these type of equipment is very common - as we say in Sweden - it is working days food :D

sincerely Lasse

With infrared I was thinking to put it on the top my sump and read to the bottom of the sump, something like this


--------------------------
IR SENSOR
|
|
\/


SUMP
--------------------------


Seeing from top to bottom
 

GillMeister

Active Member
View Badges
Joined
Apr 1, 2020
Messages
310
Reaction score
357
If you do not have fast changing in the temperature - it will works well

If you will use a infrared sensor for the temperature in your sump - be sure that you make a black area on the sumps outer wall. Measure against that black area - you can´t use a reflecting surface if you use a infrared sensor. If you do - you will also read the reflecting infrared radiation from other sources. Very few people know this and wrong readings with these type of equipment is very common - as we say in Sweden - it is working days food :D

sincerely Lasse
Yes. It's all about having a low emissivity surface to measure. The fact is there are no surfaces with perfect emissivity, making infrared temperature readings inherently inaccurate. It's still the best practice to use immersion probes.
 
Lazys Coral House

Lasse

5000 Club Member
View Badges
Joined
Mar 20, 2016
Messages
7,061
Reaction score
21,356
Location
Källarliden 14 D Bohus, Sweden
With infrared I was thinking to put it on the top my sump and read to the bottom of the sump, something like this


--------------------------
IR SENSOR
|
|
\/


SUMP
--------------------------


Seeing from top to bottom
IMO - it will not give a correct reading - the water surface will reflect all IR radiation in the cabinet.

Sincerely Lasse
 

enb141

Active Member
View Badges
Joined
May 20, 2018
Messages
116
Reaction score
27
Yes. It's all about having a low emissivity surface to measure. The fact is there are no surfaces with perfect emissivity, making infrared temperature readings inherently inaccurate. It's still the best practice to use immersion probes.

Thanks for the advice.
 

Do you have a frag tank, frag rack or some other place for coral frags currently?

  • YES (tell us in the thread)

    Votes: 133 44.8%
  • No

    Votes: 156 52.5%
  • Other

    Votes: 8 2.7%

Online statistics

Members online
1,554
Guests online
4,729
Total visitors
6,283
Top