Main Forums => Technical Discussion => Topic started by: rrgguitarman on September 16, 2006, 06:17:54 PM

Title: Hygrometer
Post by: rrgguitarman on September 16, 2006, 06:17:54 PM
I've been using a Radio Shack Hygrometer for a few years but, lately I've started questioning the accuracy of the unit.

I'm looking to buy a couple more and I was wondering what type/brand you guys use?
How do you keep your babies humidified and safe?

I live in So. California and it's been rather dry this year so, I've been using the Planet Waves in hole humidifier.
Title: Re: Hygrometer
Post by: Randy_R on September 16, 2006, 06:26:30 PM
Radioshack.  I don't think being 100% accurate is critical
Title: Re: Hygrometer
Post by: rrgguitarman on September 16, 2006, 06:34:39 PM
I agree but, the Radio Shack Hygrometer also measure temperature and based on a couple of other thermometers we own this thing is 5 degrees hotter.

That's what got me doubting the accuracy of the hygrometer.
Title: Re: Hygrometer
Post by: LookingForLarri on September 16, 2006, 07:12:24 PM
I use these hygrometers which I've read are by the smae maker as Humicase ones.  I like these better because they do NOT include the flimsy velcro that never holds but instead  has nice magnetic strips that mount great and allow you to remove the hygrometer easily without the ripping from velcro sound. The magnets hold and I have never had one come loose in the case , which I cannot say about the velcro ones.

http://www.livingincomfort.com/p3mihyandthp.html

Since I live in the Oregon high desert where the humidity averages around 33% I use Dampits, Planets Waves, and homemade devices for adding moisture to the cases.  No real preference on any of them, they all work about the same.
Title: Re: Hygrometer
Post by: rrgguitarman on September 16, 2006, 07:24:17 PM
I'll check them out. Thanks.

What kind of homemade goodies do you use?
Title: Re: Hygrometer
Post by: LookingForLarri on September 16, 2006, 07:36:39 PM
Quote from: rrgguitarman on September 16, 2006, 07:24:17 PM
I'll check them out. Thanks.

What kind of homemade goodies do you use?

Here is what I use, but I typically use a travel soap dish with a few holes in it rather than a ziplock bag.

http://www.bryankimsey.com/humdifier/index.htm
Title: Re: Hygrometer
Post by: rrgguitarman on September 16, 2006, 07:58:49 PM
Hey that's kind of cool and a lot cheaper! The Planet Waves Humidifiers I've been using are around 9 bucks a pop! I like to travel soap container idea, where do you place it?

Thank you!!

I wonder if I should humidify my archtop guitars? anyone know?
Title: Re: Hygrometer
Post by: LookingForLarri on September 16, 2006, 08:21:01 PM
You can put them in the case compartment or under the headstock. Monitor the case humidity closely and see what works best in your situation.
Title: Re: Hygrometer
Post by: rrgguitarman on September 16, 2006, 08:28:04 PM
Quote from: LookingForLarri on September 16, 2006, 08:21:01 PM
You can put them in the case compartment or under the headstock. Monitor the case humidity closely and see what works best in your situation.

Wonderful! i'll give it a shot.
The humidity in southern California has been around 28% as of late.
Title: Re: Hygrometer
Post by: parsky1 on September 17, 2006, 10:03:07 PM
My radio shack seems to report lower than my planet waves.. if I remember correctly.  Anything 42-55% I'm pretty happy with.  I think battery voltage can play a difference in the accuracy of the measurements too.  I've seen 9v batterys read out at 9.2-9.4V on a multimeter.
Title: Re: Hygrometer
Post by: LookingForLarri on September 18, 2006, 11:36:00 AM
Quote from: rrgguitarman on September 16, 2006, 08:28:04 PM
The humidity in southern California has been around 28% as of late.

I'll state the obvious just to be sure.  It's not the humidity outside that matters,  it's inside your house, room or case that must be controlled.  Your A/C and heater have a dramatic effect on the humidity levels inside your home.

:coffee :donut
Title: Re: Hygrometer
Post by: rrgguitarman on September 18, 2006, 11:43:38 AM
I monitor the inside of the house and every now and then I put the hygrometer inside the case.
Title: Re: Hygrometer
Post by: karl2795 on September 22, 2006, 02:51:04 PM
I found a really nice one at a high end cigar store that's the size of a short cigar.  It stays in my case and is supposed to be accurate to 1.5% humidity.  I think it was around $20.
Title: Re: Hygrometer
Post by: rrgguitarman on September 22, 2006, 06:49:05 PM
karl2795, can you tell me what brand it is? I bought one and send it back because it was way off!
Title: Re: Hygrometer
Post by: drathbun on September 26, 2006, 01:58:48 PM
Quote from: LookingForLarri on September 16, 2006, 08:21:01 PM
You can put them in the case compartment or under the headstock. Monitor the case humidity closely and see what works best in your situation.

When I humidified in the case, I would put a Planetwaves in the soundhole and the soapdish/sponge under the headstock. If you just put a humidifier under the headstock, the moisture will not get to the inside of the guitar, where it is needed, when the guitar case is closed.

I use a warm mist room humidifier with a built-in hygrometer now and don't worry about my guitars at all.
Title: Re: Hygrometer
Post by: WIZARDMI on September 26, 2006, 04:41:57 PM
I just bought an OASIS HYGROMETER at Elderly's in Lansing, Mi. Guy said it's better than more expensive one's. www.elderly.com
Title: Re: Hygrometer
Post by: LookingForLarri on September 27, 2006, 03:32:00 PM
Quote from: drathbun on September 26, 2006, 01:58:48 PM
If you just put a humidifier under the headstock, the moisture will not get to the inside of the guitar, where it is needed, when the guitar case is closed.


Agreed, Planet waves, dampits should also be used inside the soundhole when needed.
Title: Re: Hygrometer
Post by: rrgguitarman on September 27, 2006, 03:40:12 PM
Quote from: LookingForLarri on September 27, 2006, 03:32:00 PM

Agreed, Planet waves, dampits should also be used inside the soundhole when needed.

Ok, now i'm really lost! how do you know when you need it? when the top is caving in? or what? I've never used two at a time.
Title: Re: Hygrometer
Post by: drathbun on September 29, 2006, 09:57:27 AM
Read this from Larrivee:

Signs of Severe Dehyrdration (http://www.larrivee.com/flash/customerservice/humidity.html)

I would only use two dampits in a desperate situation where you are trying to get a severely dehydrated guitar back into shape again.

This Bob Taylor video explains some of this.
Part 1. (http://www.taylorguitars.com/see-hear/Video.aspx?file=Humidity_1_High.wmx)

Part 2. (http://www.taylorguitars.com/see-hear/Video.aspx?file=Humidity_2_High.wmx)
Title: Re: Hygrometer
Post by: LookingForLarri on October 02, 2006, 09:53:55 PM
Quote from: rrgguitarman on September 27, 2006, 03:40:12 PM
Ok, now i'm really lost! how do you know when you need it? when the top is caving in? or what? I've never used two at a time.

I'm afraid you misunderstood.  I don't use them all at the same time !! The Taylor links provide a great explanation of determining a guitars moisture level and how to treat it.  What I meant was I have used various devices at different times with sucessfull results.  I monitor levels in my cases and when they get around 40 or so I add a device in the soundhole and headstock areas to bring the level up to between 45 - 50.
Title: Re: Hygrometer
Post by: BryanD on October 10, 2006, 08:53:05 PM
Just a quick note on RadioShack hygrometers . I just came from talking to Rob at  Paragon guitars  , and he uses a RadioShack one in the shop . Hygrometers are not that accurate period from what I know . They just put you in the ball park .