Please welcome Eyoyo Underwater Fishing Cameras.https://amzn.to/3siEgXn
I've checked them out at Gander Mountain.The Shaft with the spring is pushed down and twisted, there is a pin on the shaft that sets into a notch, this locks it into place under tension.When the fish pulls line, the shaft rotates and the pin slides out of the little notch. The tension of the spring is then released, setting the hook.They were $40.00 at Gander Mountain, and I did not know how well the thing would work if you had snow, and wind. My thought was that they would have problems freezing.I have an Automatic Fisherman, and it works great. I have also heard good things about the Slammer type of tip ups.Regular tip ups can be made to set automatically.Tie a rubber band around the line in a couple of half hitches. Then put the rubber band around the spool, and wind the line on for as much line as you want the fish to have. (I usually use a couple of feet)The fish takes the bait and runs, when he peels off the line for a couple of feet, he unwraps the line up to the rubberband. The rubberband stretches, and sets the hook. If the fish pulls hard enough, the rubberband breaks and he can pull out more line.Hope this helps,Wiener
Well That sucks to hear these reports, I just bought 4 of them, hoping they would be a great investment. I can't report anything until I use them. I'm guessing it will be a week or two before I feel safe enough to venture out on the ice.Either way I'll let everyone know. If they don't work....... What a waste of money that will be.