Digital LCD Portable Indoor Outdoor Thermometer. Indoor Hygrometer

With a wired external sensor that can be strung to the outside of your house to sense external temperature as well as a built-in sensor to simultaneously measure the indoor temperature.
Indoor temperature: -10 Celsius?+50 Celsius (+14 Fahrenheit ? +122 Fahrenheit)
Outdoor temperature: -50 Celsius?+70 Celsius (-58 Fahrenheit ? +194 Fahrenheit)
Indoor Humidity: 20%RH?90%RH
Use battery: 1 * 1.5V (AAA) battery(Not included)
Sensor cable length: Approx. 90cm / 35.4in
Product size: 70 * 81 * 20mm / 2.8 * 3.2 * 0.8in
Product weight: 66g / 2.32oz

Indoor / outdoor temperature, indoor humidity display.
Celsius / Fahrenheit temperature switch display, comfort display.
Indoor and outdoor maximum and minimum temperature memory function.
Memorized MAX/MIN indoor temperature and humidity value automatically.
With back stand and magnetic stick at back side, convenient to place.