iKKEGOL Digital Indoor Outdoor in/Out Wall Mount Monitor Sensor LCD Temperature Thermometer Hygrometer Humidity Meter with Probe Cable Thermo-hygrometer measures humidity and indoor outdoor temperature,Displays in fahrenheit or celsius Humidity Gauge with humidity level icon indicates air conditions -- DRY/COMFORT/WET Mini size with 2M/6.6ft probe cable tabletop and wall hanging design,power by one AAA battery(not included) MIN and MAX temperature value recording. Memory of last measuring value Push 'IN-OUT' button to select to show INSIDE or OUTSIDE temperature (IN or OUT will be indicated on LCD screen)