Caliber 4R

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