Measures indoor temperature and humidity from -4 to 158??F (-20 to 70??C) and 1-99% RH</br>Professional accuracy: +/- 0.5??F?? +/- 2% RH with manual calibration option</br>Displays high and low records for past 24 hours and for all-time</br>Measures conditions every 10 seconds</br>Tabletop?? wall-mountable?? and magnet-mountable design</br></br>Product Description</br></br>Know your indoor environment. With an AcuRite Pro Accuracy Indoor Temperature and Humidity Monitor?? you get reliable information that can help you ensure a comfortable living space?? and better air quality?? all while taking steps to preserve your home's