About this item High Accuracy with a Fast Refresh Cycle: Indoor temperature and humidity readings are accurate up to ? Fahrenheit/Celsius and ? and the readings actually refresh every 10 seconds! This room thermometer is perfect for monitoring or fine-tuning conditions in your greenhouse, bedroom, home, basement, garage, or wine cellar. Air Comfort Indicator: The indoor thermometer and humidity gauge actively displays the current level of comfort ֠dry, comfort, wet - allowing you to see condition changes quickly. Of course temperature is selectable to ⯢ with one press of a button on top. High & Low Record Display: Temperature display range: 14?-122 ?(-10 ?-50 ?, Humidity range: 1% ~ 99% RH. The room thermometer section displays high and low temperature records for the past 24 hours or time since reset, as you prefer, and the humidity section displays humidity the same way- past 24 hours or time since reset. This helps you trend changes to your environment with ease. Clear and Large Display: Unit has a clean 2.9ԠLCD display with big bold numbers, legible from different angles, allowing you to see current conditions at a glance! Easy to Use: The digital room thermometer indoor activates as soon as batteries are installed, and there is a handy low battery reminder right on the main display when the single AAA battery runs low. It stands on its own using a flip-down handle on the back, and it can be mounted on a wall with a small brad / nail, or stick it with magnet.