humidity gauges

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dicktar2000
Stranger

Registered: 03/28/05
Posts: 36
Last seen: 20 years, 3 months

humidity gauges

#4030762 - 04/08/05 02:25 PM (21 years, 6 months ago)

Any recommendations on cheap and accurate hygrometers? The tips in the FAQ for calibrating them are welcomed, but not very useful if the ones I can afford only read to 80% RH.

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agar
old hand

Registered: 11/21/04
Posts: 9,056
Loc: Somewhere Else

Re: humidity gauges

[Re: dicktar2000]
#4030823 - 04/08/05 02:41 PM (21 years, 6 months ago)

LOOK HERE;

Real cheap ones are just that (excepting good bulb types).

Even spendy ones can F/U. If you get the wrong type.

Many novices buy $20 - 25 Digi at Lowes or HomeDepot. Only to realize to late, sensor is for temp only & place whole unit in container - so to have rh read-out. Then unit DIES after 4 days, as is not waterproof.

If you have BIG BUCKS.... look HERE:

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dicktar2000
Stranger

Registered: 03/28/05
Posts: 36
Last seen: 20 years, 3 months

Re: humidity gauges

[Re: agar]
#4030851 - 04/08/05 02:49 PM (21 years, 6 months ago)

Thanks, Agar.

But if I want any sort of reliable RH reading, the bidding starts at 50 bucks?!

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agar
old hand

Registered: 11/21/04
Posts: 9,056
Loc: Somewhere Else

Re: humidity gauges

[Re: dicktar2000]
#4030888 - 04/08/05 03:03 PM (21 years, 6 months ago)

$5 at Lowes / Home Depot is okay to start with (rh is about +/- 12% on the high end). Then - step up - when you can.

Good in $60 range is...... THIS ONE

Edit to add. If you can find the same one - elsewhere it would likely be in $30/40 range.

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Edited by agar (04/08/05 03:11 PM)

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dicktar2000
Stranger

Registered: 03/28/05
Posts: 36
Last seen: 20 years, 3 months

Re: humidity gauges

[Re: agar]
#4031306 - 04/08/05 05:16 PM (21 years, 6 months ago)

Thanks. I actually own that $5 gauge (one of the many I've tried) and NOTHING gets it over 80%.

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NeedMoreSleep
OCD = 100%Sterility :-)

Registered: 01/25/05
Posts: 1,210
Loc: One Inch ↑

Re: humidity gauges

[Re: agar]
#4031464 - 04/08/05 05:44 PM (21 years, 6 months ago)

agar said:

Many novices buy $20 - 25 Digi at Lowes or HomeDepot. Only to realize to late, sensor is for temp only & place whole unit in container - so to have rh read-out. Then unit DIES after 4 days, as is not waterproof.

I must confess I am guilty of this. However, mine was 15 bux at Wally World, and after measuring the accuracy of it with a phychrometer was found to be pretty damn accuate up to 95% RH (I do casings anyway, so it doesn't need to even be that high), so I modified it to have a remote RH sensor as well.

If you have any type of electical skills, you can pop it apart and you will notice that the RH sensor is already technically remote, as in it is hot glued to the back and has about 4" of wire running from it to teh mainboard. Just snip, splice in an extended amount of wire, solder, shrinkwrap seal, and presto you've got a remote RH sensor as well. Just be careful when popping the sensor out of its spot as you don't want to damage it. Lemme know if ya'll want me to snap a couple pics... GL bro :stoned:

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"Now, we must all fear evil men. But there is another kind of evil,
which we must fear most. And that is... the indifference of good men."
-Boondock Saints

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