Description: DC-802 LCD Digital Thermometer Hygrometer Temperature Humidity Meter Clock Indoor Outdoor with Wired External Sensor With this indoor\/outdoor thermometer-hygrometer, you can keep track of the temperature and humidity inside as well as outdoors. This device features a prominent LCD display that is easy to read, simultaneous measurement of indoor temperature and outdoor temperature, min\/max temperature memory. You can put it on a desktop or hang it on the wall. Features: Indoor and outdoor temperature humidity display. C \/ F temperature switch display, can change the unit easily. Display the date, month, day and time, 12\/24H clock and alarm clock function. Memorized MAX\/MIN indoor temperature and humidity value automatically. With back stand and a hole at back side, convenient to place it on a desk or on the wall. 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. Specifications: Color: White + Gray Material: ABS Temperature Range: Indoor: -9.9\u2103~+50\u2103 (+14\u2109~122\u2109) Outdoor: -50\u2103~+90\u2103 (-58\u2109~194\u2109) Indoor Humidity: 20%RH~99%RH Sensor Cable Length: Approx. 200cm \/ 78.7in Powered by: 2 x 1.5V (AAA) Batteries (Not included) Product Size: 14.5 x 8 x 2cm \/ 5.7 x 3.15 x 0.79in (L x W x H) Product Weight: 108g \/ 3.82oz Package Size: 19.5 x 11 x 2.5cm \/ 7.68 x 4.33 x 0.98in (L x W x H) Package Weight: 148g \/ 5.23oz Package includes: 1 x Digital LCD Thermometer Hygrometer 1 x Wired External Sensor 1 x User Manual(English) Details pictures: