I put the 2 plastic thermometers that came with my incubator in it to get it regulated and they are reading different. I added my bedside digital thermometer/ clock and then a digital thermometer/ hygrometer. They all read differently!! One of the plastic ones read slightly over 100 and one read slightly below 100, but one digital (with the hygrometer) read 105.3 and one read 101.7. How am I supposed to know whats real???? I have a cheapie forced air incubator.