STC 1000 probe in the aquarium - The Planted Tank Forum
 
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post #1 of 11 (permalink) Old 04-01-2016, 05:31 AM Thread Starter
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STC 1000 probe in the aquarium

I made my temperature controller with the STC 1000. Does anyone have experience using the probe inside the tank? Is it water proof? Where is the best location to place it?
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post #2 of 11 (permalink) Old 04-02-2016, 02:34 AM
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Any where away from the heater is fine, an area with good flow will do fine as well.
I put mine right in the tank, but I think it might have been either GraphicGr8s or planted rich that were talking about shielding it in a straw or something. Can't remember, maybe they will chime in.

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post #3 of 11 (permalink) Old 04-02-2016, 02:38 AM
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Planted rich covers his probe with a straw. I have 2 of them and do not cover mine and havent had an issue yet and have had them for several months.

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post #4 of 11 (permalink) Old 04-02-2016, 10:08 AM Thread Starter
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Yeah I read the thread about the straw, wasn't considering that. I was thinking more a glass tube or thermowell. As long as there's success without covering the probe I'll just go bareback with it.
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post #5 of 11 (permalink) Old 04-02-2016, 02:41 PM
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It looks fine. I have a similar sensor and it look like it's encased in plastic.


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post #6 of 11 (permalink) Old 04-04-2016, 08:13 AM
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i use a ranco and had always thought the probe was waterproof. then i read about some failures due to the probe. now i use a thermowell just to be safe. cheap insurance, imo.
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post #7 of 11 (permalink) Old 04-04-2016, 08:32 PM
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I remember hearingabout reef keepers coating probes in clear nail polish. In my mind this could affect how it reads temps; but worth a shot!

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post #8 of 11 (permalink) Old 04-06-2016, 03:41 PM
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It is often a gamble when we make this type decision so I look at the odds. One is how much do I trust the person, company or country that made the item. Do they have a good reputation for quality or do they sometimes ship out shoddy materials? Then I balance how much trouble it will be if the item fails versus how much trouble it might be to protect it.
Some points I've learned? The probes are cheap but I have to shop to find them and wait to get them which leaves my unit dead for a time. My first three which were supposed to be waterproof, got wet and failed within three weeks to 6 months. I know they got wet because I took them apart and found water. I currently have 7 that have been run in covers and none have failed. That is a very small sample and doesn't really mean too much but it does give me some input.
I find I can pick up the great big long straws from fast food, seal it and stick the probe in very quick and easy. The straws give the probe wiring just enough stiffness to make it easy to place them. Silicone, suction cup or just wedged behind the filter intake tubing, all seem easy. Keep in mind that you want to keep the straw top above the water? You want to seal the water OUT, not IN!
For me, the ease of lighting the straw and then clamping the end shut to seal it versus the trouble of shopping, waiting, and then replacing the probes look like a pretty simple decision.

For placement, I can think of no better place to get real circulation as well as be hidden than the back side of the filter intake.
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post #9 of 11 (permalink) Old 04-06-2016, 04:21 PM
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I had 2 new units that also failed pretty quickly after putting in water. What a PITA to find new probes! I covered the end with a layer of silicone and haven't had a problem since.
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post #10 of 11 (permalink) Old 04-06-2016, 04:50 PM Thread Starter
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Good points and good info. A straw it is! So you light the straw on fire then clamp the end shut?
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post #11 of 11 (permalink) Old 04-06-2016, 05:13 PM
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Most any way to quickly flatten it together. If in the garage, I lay it down on the concrete and hit it with a hammer. That puts out the little fire and it stays melted together. A pair of pliers with flat jaws or a couple scraps of board works, too.
Just most anything but fingers!!!

Get the fatter straws to fit the probe.
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