รายละเอียด: TECHNICAL DATA เครื่องวัดความเร็วลม อุณหภูมิ ความชื้น แบบพกพา ความดัน และความสูง KESTREL รุ่น K4500 Range : 0.4 ถึง 60.0 m/s , -45 ถึง+125 C , 0 ถึง 100%RH , 0.3 ถึง 32.5 inHg, -2000 ถึง 9000 m Resolution : 0.1 m/s , 0.1 C ,0.1 %RH, 0.01inHg , 1m Features: Waterproof and floats Time and date Easy- to-read backlit display Data Logger (automatic and manual) Customizable data storage - 1400 data points Minimum, Maximum and Average values Multi-Function 3-line display Humidity sensor can be recalibrated in the field with our Relative Humidity Calibration Kit Exterior temperature, humidity, and pressure sensors for fast and accurate readings Customize screens to display user-selected measurements Graph and recall trends User-replaceable impeller Flip-top impeller cover allows use of other functions while protecting the impeller Data charting Upload to a computer (with optional interface) Five languages (English, French, Spanish, German, and Italian) US Patent Nos. 5,783,753 and 5,939,645 and 6,257,074 All instruments and accessories are completely assembled in the USA What's Included: Soft carry pouch Neck lanyard Batteries - 2 AAA Kestrel Certificate of Conformity