Question..2 different hydrometers...same calibration test.

jd50ae

Lee.mcglynn

Well the salt test should give you 75 so I'd go with that

jd50ae

Cigary

When buying a hygro try and get one that is adjustable..it will save you headaches in the future as we all want one that is accurate. Once it's established through a salt test that your hygro is working you can adjust it if it's off by 1 or 2%. Nothing worse than have to do math by 1 or 2% for those hygros that are off.

Bob Luken

All I've ever heard was that you should have a 75% reading on the salt test. And adjusting analogs is an exercise in futility. It's easier to do the math that to keep endlessly sticking screwdrivers into the back of those fickle things.

jlmarta

Bob Luken:

All I've ever heard was that you should have a 75% reading on the salt test. And adjusting analogs is an exercise in futility. It's easier to do the math that to keep endlessly sticking screwdrivers into the back of those fickle things.

The very best test for an analog hygrometer is the trash can test. You simply open the trash can, drop the analog hygro into it, close the trash can and walk away. You'll be far better off in the long run, trust me.

jd50ae

Bob Luken

Bob Luken

jlmarta

You can't expect much accuracy from a device that uses a hair (sometimes horse, sometimes human) for its primary sensing function. Besides, what if the human hair is from a blonde?? LOL