ITEM NAME:DC103 Digital LCD Portable Indoor Outdoor Thermometer Hygrometer J5U7 DC103 Digital LCD Portable Indoor Outdoor Thermometer Hygrometer J5U7 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. 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 Celsiusï ½Å¾+50 Celsius (+14 Fahrenheit ï ½Å¾ +122 Fahrenheit) Outdoor temperature: -50 Celsiusï ½Å¾+70 Celsius (-58 Fahrenheit ï ½Å¾ +194 Fahrenheit) Indoor Humidity: 20%RHï ½Å¾90%RH Use battery: 1.5V (AG13) * 1(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 Package List: 1 * Digital LCD Thermometer Hygrometer 1 * User Manual(English) Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..Indoor / outdoor temperature, indoor humidity display. Indoor temperature: -10 Celsiusï ½Å¾+50 Celsius (+14 Fahrenheit ï ½Å¾ +122 Fahrenheit). Indoor Humidity: 20%RHï ½Å¾90%RH. Outdoor temperature: -50 Celsiusï ½Å¾+70 Celsius (-58 Fahrenheit ï ½Å¾ +194 Fahrenheit).