My wife (silkiemom) and i bought a RCOM-20 standard as our Christmas present this year! Please join us as we have our first hatch of silkies out of our new bator the silkies are show quality, among the 18 we have 3 reds 3 red partridges 4 lavenders 4 mysery eggs 3 whites and one that says L2 not sure what that is I forgot to take a picture of the calibration but i calibrated the r-com 20 with a wiggler 2 hydrometers and a digital thermometer all has been holding perfect for a week now!! Loaded! We LOVE how it holds the perfet temperature and humidity!!