I have the 1602N model. It was the ony kind available (small town living!). I then ordered the the 1610 automatic turner from GQF and am very satisfied with the product and the delivery. It has worked wonderfully for my first hatching. It came with chicken and quail egg racks. Our next hatching will be 30 quail eggs. As it was my first time, I did have a couple of days to ge the temp right before adding the eggs, but once I got it leveled off it has held a steady temp. I love it but will probably upgrade in the future.
