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.
What to do if your baby doesn't roll over. If your baby hasn't figured out how to flip one way or the other by the time he's about 6 months old, and hasn't moved on to sit and try to scoot and crawl instead, bring it up the next time you talk to his doctor.