Temperature and humidity affect your home's comfort. Keep your home’s temperature and humidity at optimal levels with La Crosse Technology’s 302-1409BW-W Indoor Comfort Meter and Data Logger. Its easy-to-read display shows your comfort level at a glance. Log hourly, daily, monthly, and annual highs with the touch of a button. The Data Logger also displays the current time in either 12- or 24-hour format, date and month, and low battery.