If you haven't already got your
thermometers and
hygrometers, here's a link to the hygrometers I use, cheap and once calibrated they are accurate to use.
https://www.google.com/aclk?sa=l&ai...ahUKEwjO2c3w543hAhUSOq0KHVPiCDcQwg8IQw&adurl=
Theres really no way to calibrate the thermometer on this unit but it is pretty accurate, and has a setting for °F or °C. I use the old school mercury hatcing thermometers for all my incubators...way more accurate than most anything out there besides a traceable lab testing thermometer.
You can
calibrate your
hygrometers with a psychrometer, but another option is to place a teaspoon of salt in a bottle cap and add a few drops of water to get the salt wet but not dissolved in a solution. Place the container in a plastic bag with the
hygrometer and some air, and seal the bag. ( sometimes the bags leak) don't use a leaking bag.
A better method is to place it in a glass jar that's big enough to hold the hygrometer and bottle cap/salt and has an 'air tight' seal.
After 6 hours take a reading, should be at 75%, if not you will either be high or low, subtract or add that percent difference to obtain the (true) correct reading.
I usually let mine calibrate for 24 hours, then take a reading.
You will also want to calibrate before each hatch.
Good luck and Best wishes HTH
