This thermometer is sold with all Hova-Bator Incubators, but it will work with all types of incubators. This lightweight thermometer is designed to be placed directly on top of the eggs, which will give you an egg level temperature reading. Has both F and C scales, range is 60 to 120F. Measures 3.5" X 6.5"
This is the best inexpensive incubator thermometer I have found