To make the change just hit the switch button on the back of the instrument and you are done. The operational ranges of 302-604 are 20% to 99% RH for the humidity sensor and -4Â° F to 122Â° F for temperature â totally sufficient for this sort of home apparatus.
Your baby will probably be able to roll over when he's about six months or seven months, when his neck and arm muscles are strong enough. Some babies manage to roll over as early as three months, but other babies take longer than seven months.
Typically, babies start sitting at 6 months, but this should not be taken literal, but as a ballpark. So babies that sit near 5 months through 7 months, this is OK. If your baby is sitting early, I would also ask, is your baby rolling over because, with back to sleep, (which is a MUST!) and babies are not going on their belly as much, some babies HATE to be on their tummies and would prefer to sit.