acu-rite hygrometer at wallyworld

[G G]

I've had one for 4 or five months now and it's usually 3-5 off. That's not any worse than the ones I've bought at the B&Ms for $20.00

Just get some Shilala hcm beads and then all you have to use it for is to see when you put the sponges in to bump em up.