Features: High Precision: It provides simultaneous monitor of temperature humidity, -4~158℉(-20~70℃) 10%~99%RH wide measuring range, 0.1℃/℉ 1%RH accuracy. Air Condition Indicator: Small triangle icon shows up beneath humidity level(DRY/COMFORT/WET), to indicate the air condition of living environment. High Low Records: Digital hygrometer thermometer displays high and low temperature humidity of past 24 hours, which allows comparison to grasp environment changes. Clear LCD Display: Featured with big-font data value backlight screen, it ensures the measurements is easy to read, even in low light condition. 2 Mounting Options: Temperature humidity meter, equips with back bracket, able to stand on table, hanging hole, convenient to mount on wall in bedroom, living room, kitchen, office, etc.