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.
Some babies can flip themselves from their front to their back as early as three months. But it's more likely that your baby will be six months or seven months old by the time she's strong enough to roll both ways. Her neck and arm muscles need time to strengthen first. Be warned that your baby will learn to roll over without giving you notice! You will need to be extra careful if you change her nappy on a changing table.