This maintenance-free wall mount hygrometer equipped with a dual readout displays the temperature (0-160°F; -19.9-69.8°C) digitally and the humidity (20-100%) on an analog dial for simultaneous monitoring, in either °F or °C (switchable).
The Dickson TH8P3 is a portable device which automatically records the air temperature (-20-120°F) and humidity (0-110%) 24-hours/day, seven days per week, providing a permanent record, even when you can't be on-site.