Struggling with humidity

[MCB]

Hi All,

I’ve orchid bark for substrate, one very large ceramic type dog water bowl (in far the end) and a normal sized ceramic bowl under the heat source (a 150w ceramic). I’ve also sealed up three of the vents leaving just the one open.

I have two separate digital thermometers / hydrometers at each end of the viv. One is 2 inches off the floor and at the other end is about 12 inches off the floor (both are attached the back of the viv). I also mist spray once day. I am struggling to get either end over 50%. Any ideas as I thought I’d have done enough? Both meters can’t be wrong surly, can they…..? I’ve order a couple of the cheap stick on ones to see what they read (still in the post)

I’ve even turn off the rad in the room as to try not to dry the air out. The viv isn't sat on anything warm as its on a desk and air can circulate underneath fine.

Ideally i want to maintain 60%-70% as the viv houses my dwarf retic. Its a wooden viv by the way.

Has anyone had any experience with these humidifiers / foggers / misters that you can now get?