Here is a r-com digital incy. Just set the temp and humidity you want and place the tube in a bottle of tap water. Very stable unit, I used it to hatch last year and also went 'full term' with a few batches of eggs. Great hatch rate every time. Once again this is one I am selling so I can get a cabinet, it is in perfect condition everything works. Easy to clean up and sanitize.
http://www.jmtdistributors.com/rcom-suro-20-n20.html
http://www.jmtdistributors.com/rcom-suro-20-n20.html