Recstar24
Well-known member
Just purchased a caliber IV and am wondering how best to calibrate it, or whether I should even bother with calibrating it.
The salt test is at 75%, and hygrometers don't measure linearly so not sure how useful that is to ukes. Boveda has calibrating kits for 75% and 33%, and a salt test using potassium carbonate can get you to 43% RH but where the heck do you get it lol.
According to the link below, there's data to show the caliber IV is pretty accurate or accurate enough out of box without calibration.
http://www.classicalguitardelcamp.com/viewtopic.php?t=81977
Burgess violins also sells a calibrated hygrometer that looks like just a caliber IV and it also appears to be set to be accurate between 40-60% RH.
The salt test is at 75%, and hygrometers don't measure linearly so not sure how useful that is to ukes. Boveda has calibrating kits for 75% and 33%, and a salt test using potassium carbonate can get you to 43% RH but where the heck do you get it lol.
According to the link below, there's data to show the caliber IV is pretty accurate or accurate enough out of box without calibration.
http://www.classicalguitardelcamp.com/viewtopic.php?t=81977
Burgess violins also sells a calibrated hygrometer that looks like just a caliber IV and it also appears to be set to be accurate between 40-60% RH.