Caliber 4R digital hygrometer and thermometer 1
I recently purchased a dehumidifier to place in my gun safe (product review is coming), but I wanted to make sure it was doing its job properly. The only way to ensure that is to test the humidity inside the safe before placing the dehumidifier in there versus after. And […]

Product Review: Western Humidor Caliber 4R Digital Hygrometer and Thermometer

Caliber 4R hygrometer in a salt test 2
“It’s not the heat… it’s the humidity that gets you.” Not only is that true for personal comfort, but even more so for important items that need to be kept at a specific humidity (like cigars at 70%) or metal parts on guns (which want to be stored in a […]

How to Calibrate a Hygrometer (Humidity Sensor) using the Salt ...