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  #1  
Old 03-01-2021, 02:20 PM
otis66 otis66 is offline
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Default D’Addario Humditrac Calibration

Just bought a D’Addario Humiditrak system
I was wondering if I the Sensor needed to be calibrated?
Anyone here using this system?
Also have two more Oasis hygrometers and a large Hydrometer to set on my desk.
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Old 03-01-2021, 03:01 PM
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If you plan on performing relative humidity calibrations (if the sensors are provided with a means to do so), or just plan on checking the accuracy of your hygrometers, use a sling psychrometer as the reference standard. Here is an example of what these instruments look like:

https://www.globaltestsupply.com/pro...oaArpiEALw_wcB

A sling psychrometer (wet bulb thermometer/dry bulb thermometer) is the most accurate method available to measure RH. It is rather inconvenient to use, though. That's why the small digital electronic units are so popular. Unfortunately the accuracy and precision, of the thin-film capacitive sensor, is somewhat sloppy.
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Old 03-01-2021, 03:13 PM
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They're not accurate and there's no way to adjust them unfortunately.
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Old 03-01-2021, 03:19 PM
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Quote:
Originally Posted by DavidE View Post
They're not accurate and there's no way to adjust them unfortunately.
That was my experience, too. I switched to Govee. Cheaper, plenty accurate for my needs...and can be calibrated.
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Old 03-01-2021, 03:30 PM
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That was my experience, too. I switched to Govee. Cheaper, plenty accurate for my needs...and can be calibrated.
$20 on eBay. Is this the one I want? Govee Wireless Bluetooth hygrometer and thermometer?
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Old 03-01-2021, 03:35 PM
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Quote:
Originally Posted by Rev Roy View Post
That was my experience, too. I switched to Govee. Cheaper, plenty accurate for my needs...and can be calibrated.
$20 on eBay. Is this the one I want? Govee Wireless Bluetooth hygrometer and thermometer?
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Old 03-01-2021, 03:51 PM
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Quote:
Originally Posted by otis66 View Post
$20 on eBay. Is this the one I want? Govee Wireless Bluetooth hygrometer and thermometer?
These are the ones I started with. https://smile.amazon.com/Govee-Tempe...ngshoppinga-20

As you can see, I now have three different kinds, including the versions that are WiFi enabled.

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Old 03-01-2021, 04:14 PM
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Thanks I will order now.
I almost bought three Planet Wave hygrometer systems
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Old 03-01-2021, 04:31 PM
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Quote:
Originally Posted by otis66 View Post
Just bought a D’Addario Humiditrak system
I was wondering if I the Sensor needed to be calibrated?
Anyone here using this system?
Also have two more Oasis hygrometers and a large Hydrometer to set on my desk.
You cannot calibrate the Humiditrak, unfortunately. Mine is junk and was junk when I opened the package. My calibrated hygrometer reads 39% right now and the Humiditrak reads 54%. There is no way I would ever trust my guitars to this device. I’ve been trying since Christmas to get the replacement the company promised to send me(two times) and have little hope I will ever receive it. I will not buy another D’Addario product.
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Old 03-01-2021, 04:52 PM
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I've tried the D'Addario, Oasis, Govee and SensorPush. Nothing works as smoothly and accurately as the SensorPush IMO. Govee works but the app is slow and isn't as well designed and responsive as the SensorPush app. I know the Govees are popular here but that app can be so slow for me and doesn't respond as quickly as the SensorPush.
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Old 03-01-2021, 09:10 PM
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I started a salt test on one of my two new hygrometers. Both are adjustable. My old one is not adjustable and is 15 points off. Reads 63-65% not 75% after 24 hours.
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Old 03-03-2021, 02:52 PM
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Just got two Govee Smart Hygrometers. I’m salt testing them now.
It’s nice to be able to calibrate the hygrometer from my iPad.
My D’Addario Hygotrak is off by 5%. I could only get 70% with salt test. I contacted D’Addario to see what can be done.
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Old 03-03-2021, 10:55 PM
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Quote:
Originally Posted by FLRon View Post
You cannot calibrate the Humiditrak, unfortunately. Mine is junk and was junk when I opened the package. My calibrated hygrometer reads 39% right now and the Humiditrak reads 54%. There is no way I would ever trust my guitars to this device. I’ve been trying since Christmas to get the replacement the company promised to send me(two times) and have little hope I will ever receive it. I will not buy another D’Addario product.
Same with mine. It stayed at 39% until I started a salt test. Only goes to 70% after 24 hours. 5% off.
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Old 03-04-2021, 02:04 PM
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The problem with the salt test is that you're testing at 75% when you really want to be testing at 50%RH. I've found several to be even further off at 50% than they are at 75%.
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