Hygrometer

High Accuracy: Built-in Swiss-made temperature humidity sensor, the temperature is accurate to ±0.5°F while humidity is ±3%RH. Up to 2S refresh speed always gives you the changes of environment. Large LCD Display: It offers realtime temp/humidity readings with large numbers and max/min records on 3 inch LCD screen, comes with 3 level comfort indicators low/ok/high keeping you aware of lash room situation with just a glance.