Yes, it comes with a mount which is a plastic pipe with a pivot at the base. I'm sure you could mount the station itself on the same size pipe. The hardest thing would be getting it level. I'm not sure what diameter the pipe is but I would guess the outside diameter is around 1 in. The pipe in the picture is part of the base, and the unit sits over the end of the pipe. Hope this answers your question. 

Yes, this portable carbon monoxide detector has a hole on the top, so we can use lanyard to hang it to the wall 

I would ask your pediatrician but I’m guessing probably not 

The camera does not have an on/off switch. If you want to switch them off completely, you have to disconnect them from the power supply (e.g. when not in use) but you can also leave them plugged in. 

Has a 1/4 threaded connection for use with a tripod