I have a small plastic incubator (a Brinsea Octagon 10) that I bought third hand. There is no built-in hygrometer, and there isn't really room to place a hygrometer inside (I'd bought one last year, struggled with placing it so I could actually read it, and, once the first chick hatched, he kept flipping it over and/or sitting on it, so I had no way of telling what the humidity was during hatching). So I decided to get a hygrometer with a probe. I bought an Incutherm from Incubator Warehouse, which arrived today. Slight problem, though--the probe is too big to go through the ventilation holes! Does anyone have any recommendations for a hygrometer with a probe that will fit through a pencil-sized hole (I did test with a pencil--fits through nicely, but nothing bigger would)? Barring that, are there any reliable hygrometers with a probe with a cable that plugs into the readout (I'm thinking maybe unplugging the cable, feeding it through the hole from inside, and then plugging it back in), if such a thing even exists?