jnjross... check in the cooking dept at WalMart. We got two thermometers, one digital and one regular style reading that are both really small and intended for use as meat thermometers. They are 'instant read' and actually do pretty well for many things. When we were warming our eggs to 'room temp' the other day I laid one at a diagonal across the carton to keep track of the temp and it was within 1 degree of the one on the wall. They may not be intended for incubators but there are many styles of the cooking thermometers so it may work for you.