Hi, I'm Richie and I'm incubating quail

Howdy Richie :frow Welcome to Backyard Chickens. Enjoy your time here!
The ACCURITE Hygrometer is a pretty good Hygrometer but they need to be 'salt test' calibrated before use. Also, another thing that will help keep the temperature stable, is an INKBIRD T-360 thermostat. You can get one on Amazon for around $30, it's a 'plug & play' device.
Good luck with your hatching endeavors!
 
Howdy Richie :frow Welcome to Backyard Chickens. Enjoy your time here!
The ACCURITE Hygrometer is a pretty good Hygrometer but they need to be 'salt test' calibrated before use. Also, another thing that will help keep the temperature stable, is an INKBIRD T-360 thermostat. You can get one on Amazon for around $30, it's a 'plug & play' device.
Good luck with your hatching endeavors!
I'm salt testing a hygrometer right now but I can't calibrate it. Will it always be off by the same amount?
 
I'm salt testing a hygrometer right now but I can't calibrate it. Will it always be off by the same amount?
'Salt testing' is calibrating the Hygrometer, it should read 75% at 8 to 12 hours of being sealed in a ziplock bag or another 'air tight' container.

Not necessarily, you might get a different reading each time you calibrate it. I perform 3 tests, and then take the average if they are not the same each time. Ideally, they should read the same each time you calibrate but there are subtle differences in each test that may make that impossible.
Example: after the 8 to 12 hour period is reached, the Hygrometer reads: 70%, you would use this formula to determine the % diff. RH 2 (70) - RH 1(75) ÷ RH 1(75) = RH 3 (-0.6667) X 100 = (-6.7%) rounded up,, to get the % difference, so you would either add, if a positive value or subtract, a negative value,, that percent from the actual reading your getting from the Hygrometer when it's in the incubator. In this example if your Hygrometer was reading 62% Rh in the bator, then you would subtract 6.7% from that to get the correct/ actual Rh in the bator (55.3%Rh).
 
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