Is the probe near the tub with the eggs in? My eggs are all in seperate clutch tubs, which are sealed with a few tiny air holes so I put the probe close to a tub and measure that then up the temp a bit so that the inside is as near to correct as possible.
With species like Leo's you don't have to get the temp spot on, as the range is quite big as they are sex determined by temp so aslong as it's "about" it should be fine. It's big fluctuations that will cause a problem, so try not to worry too much
