Check the listing for details. LCD Indoor/Outdoor Digital Thermometer Hygrometer Temperature Humidity Display. Condition: New. Listed at 11.04 USD. Item number: 1740Product description:This hygrometer features 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 temperatureColor : WhiteCable Length : 1.5m (5’)Material : PlasticPower Supply : 1.5V AAA Battery (not include)Indoor Temperature Range : -10°C to 50°C (14°F to 122°F)Outdoor Temperature Range : -40°C to 70°C (-40°F to 158°F)Indoor Hygrometer Range : 20%RH to 98%RHSwitchable temperature display : Centigrade to FahrenheitSize : Approx 12.5 x 7 x 2cm (5” x 2-3/4” x 25/32”)Weight : Approx 90g (3-3/16oz)Feature :100% brand new and high quality guaranteeIndoor and outdoor temperature (min.or max.) and indoor humidity (max.or min.) displayOne cable with probe for the measurement of the outdoor temperature and humidityIdeal household decoration and ensure you the most desirable ambient temperature and humidityChecks the maximum or minimum temperature and humidity by pressing the MAX./MIN. SwitchSimultaneously displaying the indoor and outdoor temperature and indoor humidityThe memory will show the maximum or minimum temperature humidity of the period from the last reset on the relativeConsiderate design for installation: one hold and a stand back of the thermometer for easy hanging on the wall or standing on the desk Package included:1Pcs Temperature & Humidity Meter