Jumping Right In! Brand New Set Up

[Grownsince95]

Sometimes the manufacturer has a plastic sleeve or tape to protect the sensor that is hard to see and the units will read temp fine but not rh. I had a new fan with one and I thought it was defective for 3 days before I noticed lol. But not everyone makes bone headed mistakes like I do.

 

[Goodthingsgrow]

So that has a probe in the dome only showing 31% ?

Yes. In the air vent close to the centre at about plant height.

 

[Grownsince95]

Yes. In the air vent close to the centre at about plant height.

So no hidden plastic covering the sensor huh?

 

[Goodthingsgrow]

The air vent is closed and I have the small cup covering the small opening that’s left from the wire.
I will check for a cover on the probe.
With the basement so cold, is it maybe chilling the droplets too much?

 

[Goodthingsgrow]

Just checked. There is no cover. The reading is now 30%.

 

[Grownsince95]

Do you happen have a second hygrometer that you can put inside the dome to verify this one is working correctly?

 

[Aqua Man]

Yeah I would find that probe suspect... I dont thinknits working correctly.

 

[Grownsince95]

Obviously something is not adding up because for condensation to appear inside the dome the air touching the inside of the dome has to have reached its dewpoint which would be 100% rh

 

[Goodthingsgrow]

Im going to put a different sensor from another wireless system in there to compare.

 

[Grownsince95]

Just by eye/experience it looks like they have a happy place there if you leave it closed and undisturbed at least 7 days at that temp. Maybe 10. Just my 2 cents though

 

[Goodthingsgrow]

Thanks for all your help!

 

[Aqua Man]

So try this... take some regular table salt (sodium chloride) like 1-2tbs in a ziplock. Use water and an eye dropper just to wet the salt not dissolve it. Should not dissolve the salt. Place the sensor in the zip lock and seal the best you can. The sensor should read about 75%.

 

[Goodthingsgrow]

Will pink salt work? That’s all I have. It has a Sodium count of 590mg/1.5g(1/4 tsp).

 

[Grownsince95]

OK one more thing about that probe and then I'll shut up I promise. Lol I noticed that it's an indoor/outdoor thermometer and obviously I see you have it set on outdoor to use the probe. When you switch it to "indoor" does the RH value change? If not the unit is only reading the indoor humidity and possibly does not have a sensor on the probe

 

[Aqua Man]

Will pink salt work? That’s all I have. It has a Sodium count of 590mg/1.5g(1/4 tsp).

Different salts give differnet humidity let me see if I can find Himalayan salt. Thats what ya have right?

 

[Goodthingsgrow]

Please don’t. I appreciate your help and time.
This is what I have found.
When I changed the sensor from out to in only the temp changed and only slightly.
I also checked the new sensor.
The first hygrometer is ucked.

 

[Goodthingsgrow]

Different salts give differnet humidity let me see if I can find Himalayan salt. Thats what ya have right?

Yes.

 

[Goodthingsgrow]

Turning down the heat now!

 

[Grownsince95]

If you mean the 80.3° is in the dome don't turn it down too much thats perfect imo.

 

[Grownsince95]

Please don’t. I appreciate your help and time.
This is what I have found.
When I changed the sensor from out to in only the temp changed and only slightly.
I also checked the new sensor.
The first hygrometer is ucked.

Yes so it works correctly just does not have an RH probe for "outdoor" mode