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Old 10-08-2019, 10:17 PM
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Default Best digital humidity controller

I'm looking for a reliable digital humidity controller with a remote sensor. I'd like something reliable and fairly accurate, but accuracy yo within +- 0.1% or something like that isn't necessary. +-3% is good enough.

I dont need one with a thermostat. I've heard bad things about inkbird, and am put off by name brands like zoo med. I'm looking for something nicer.

If any of them have features like wifi controllability and data logging, that would be ideal. What are my options? Thanks!
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Old 10-08-2019, 10:33 PM
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Default Re: Best digital humidity controller

https://www.dendroboard.com/forum/gt...p?q=hygrometer
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Old 10-08-2019, 10:47 PM
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Default Re: Best digital humidity controller

Greetings,

From the your request, it sounds like you are hoping for a humidity sensor that you can leave in your viv (with a further desire for wifi connectivity). You aren't going to be able to find a reliable sensor that be left in-place.

In a thermometer, the material doing the detection (alcohol, mercury, a metallic strip) can be sealed away from the object that needs to be measured (like the water or air whose temperature you are trying to measure).

A hygrometer, in contrast, has to be in contact with the material it is trying to measure because, unlike heat, one cannot measure moisture content of air without "touching" that moisture directly.

This is a problem because temperature changes in a high humidity environment can lead to condensation. A hygrometer with water condensed on its detector is useless/unreliable and may remain so even after the condensation has dissipated. In a frog viv, misting and high humidity lead to wet and unreliable hygrometers.

Most people use their hygrometer to aid in tuning their misting schedule and ventilation parameters to maintain the humidity conditions they want rather than relying on a constant humidity reading as a control strategy. I suggest you do the same.
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Old 10-10-2019, 06:55 PM
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Default Re: Best digital humidity controller

Quote:
Greetings,

From the your request, it sounds like you are hoping for a humidity sensor that you can leave in your viv (with a further desire for wifi connectivity). You aren't going to be able to find a reliable sensor that be left in-place.

In a thermometer, the material doing the detection (alcohol, mercury, a metallic strip) can be sealed away from the object that needs to be measured (like the water or air whose temperature you are trying to measure).

A hygrometer, in contrast, has to be in contact with the material it is trying to measure because, unlike heat, one cannot measure moisture content of air without "touching" that moisture directly.

This is a problem because temperature changes in a high humidity environment can lead to condensation. A hygrometer with water condensed on its detector is useless/unreliable and may remain so even after the condensation has dissipated. In a frog viv, misting and high humidity lead to wet and unreliable hygrometers.

Most people use their hygrometer to aid in tuning their misting schedule and ventilation parameters to maintain the humidity conditions they want rather than relying on a constant humidity reading as a control strategy. I suggest you do the same.
@OP- This is dense, rich information. I will try to add a little value as well.
  • Exactly what problem do you think auto-controlled humidity is the best solution for?
  • What alternative solutions come to mind?
  • Why have you rejected all of them, in favor of this one?
  • Are you sure you have diagnosed "the problem" correctly in the first place? It's hard to come up with a good prescription, if your diagnosis is incorrect.

This could help. Good luck!
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