Description Indoor / outdoor temperature, indoor humidity display. °C / °F 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. Digital Thermometer Hygrometer DC103 Temperature Humidity Meter with External Probe
