Curious

[Griz]

If I put a 70% boveda and a humidity meter in a ziplock Baggie for a couple days! would that be accurate enough to calibrate the meter?

 

[Craig Mac]

Yes, it will tell you what the hygrometer is reading and you can see what the +/- is relative to 70%. If it has a reset button then you would have to use one that is 75% to be able to correct it.

 

[UpInSmoke]

Yes sir. Thats how I calibrate my digital hygrometers

 

[stukibuilt]

Yeah, you can also just do a basic salt test or get the boveda calibration pack. They are pretty cheap...

 

[Griz]

Thanks guys, I will get to it.

 

[rdomfoto]

I would strongly recommend using the Boveda calibration kit. I think I paid about $5 for mine. I tried using the salt test and, even after 2-3 weeks and multiple resets, my hygrometer was never accurate. Actually, to be fair, I really don't think I used the right salt/water mix. When I bought the calibration kit, I placed my hygrometer inside, came back the next day, adjusted it so it read 75%, put it back in and checked the next day. It still read 75%. All that time screwing around with the salt and water when I could have had it done for $5?

Some guys have really good luck with the salt test but I didn't.

 

[Griz]

I would strongly recommend using the Boveda calibration kit. I think I paid about $5 for mine. I tried using the salt test and, even after 2-3 weeks and multiple resets, my hygrometer was never accurate. Actually, to be fair, I really don't think I used the right salt/water mix. When I bought the calibration kit, I placed my hygrometer inside, came back the next day, adjusted it so it read 75%, put it back in and checked the next day. It still read 75%. All that time screwing around with the salt and water when I could have had it done for $5?

Some guys have really good luck with the salt test but I didn't.

Yep, that's why I asked about the boveda, I did several salt tests on several meters and still get different results...

 

[Craig Mac]

If you just are looking to check accuracy then using any boveda pack on hand will do.

 

[Heath]

My problem is I can never fix my digital to the correct RH once I do the test. Such a pain in the ass. The last time I needed to adjust it down by like 12 and I ran out of clicks to bring it down.

 

[jmartins]

I used the salt test and it has worked perfect for me. Use just enough water to make the salt soggy like wet sand and then air tight and it works perfect.