Small table-top style humidors suck, for lack of a better word. There's just not enough internal volume to maintain an accurate and stable environment. To maintain the correct RH as per hydro readings, you'll most likely wind up with wet cigars and cigars that taste like crap. IMO of course.

Get yourself a 54 qt Igloo Marine Cooler and a load of quality empty cigar boxes, not those that are painted or varnished. Bare wood boxes are best. If possible, line the bottom with thin cedar and maybe a little along the lower walls. Get it pumped up to about 75 RH over the course of a few weeks then put a big bag of humi beads, maybe 1 1/2 lbs. in the center-bottom between the boxes and let that sucker stabilize at about 65 RH.

You'll be happy as the cigars will be kept perfectly and overall the cooler requires little maintenance or headache other than a little water spray on the bag once in a while. Keep the drain plug open to allow some of the gases to release. It doesn't have that much impact on the RH.