Die-cast and electroplated housing. Waterproof and sensitive sensor. Name: USB PC Thermometer;Type: Gold TEMPer;Color: silver;Material: metal ;Size: about 53 x 14 x 7 mm; Golden USB adapter, good-looking and high quality. Temperature measurement range: -55 to +125 degrees Celsius/ -67 to +257 degrees Fahrenheit. Application range: indoor and outdoor temperature detection, machine room and storeroom environment monitoring, superstore, air condition temperature control and monitor, farm, vege Operating instructions: 1. It enables you to read temperature without installation of software. Only when you Caps Lock or Num Lock or 2 simultaneously can you read temperature in excel, text or word formats. When you it for one time, the reading interval increase 1 second. It is convenient to use and tend to form curve in excel format. 2. Temperature display frame: Shows current temperature in software interface on top left corner. 3. Curve display: There are 2 curves: AVG Line and Current Line. Users can watch temperature. Current line shows change of temperature. Curve trend reacts current temperature. 4. Daily record: It records current temperature and saves in relevant files automatically. 5. : After user logs in, your friends can operate according to relevant prompt and achieves temperature data. When your friend sends "1" according to prompt, it means that he has gotten temperature data. Temperature data includes: current temperature, maximum, minimum and average. 6. E-mail: Fill in relevant E-mail information and save it. Email sending request: support POP3/SMTP or other server port. 2 receiving emails can be filled in. Package Includes:1 x Thermometer Note:Light 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.