Yeah it works.

This version is sewed to an old pants for test and and my son carried it, in the night. I got 3 alarms.Two in the evening and one this morning at eight o'clock. Each time I was there in time, to change his diaper or to put him on the toilet, to avoid a catastrophe.

Even if this works like it should, it's not a good idea to attached it this way to the pants. I would need to put one transmitter on each one, and they had to be water proved and washing machine resistant.

So I think, some kind of belt will be the solution. I will now transform a pair of pants with this system, so that it will help us for the next days, and I will concentrate on this belt stuff.

I sew a small tube out of fabric. First I used jeans from an old pants, but is not very elastic, so I switched to an old shirt.

The electronic was hot glued on a small piece of foam an with the help of duct tape isolated.

the elastic band was fixed on the other side. The tension was just not big enough to handle the switch.

Then the tube was sewed to the pants. same here, the tension did just not activate the switch.

And here the whole thing on the test subject :)