Feature: Wind speed & temperature measurement, 2 in 1 function. Data hold, convenient to use and search data. Max/Min/Average/Cu measurement LCD backlight display, clear data reading. Auto power off, don't worry about the power will completely consume as forget to shut down. Specification : Brand SMART SENSOR Model AR836+ Wind Speed Range 0.3-45m/ s Wind Speed Accuracy ±3%rdg + 0.1 Wind Speed Units m / s, Ft / min, Knots, km / hr, Mph Current/Average Measuring yes Temperature measuring range 0-45℃ Temp. Resolution 0.2℃ Yes Backlight Display Yes Low battery notice Yes Data hold Yes Resolution 0.1m/s Max/Min Value Yes Auto shutdown Yes Power 9V（6F22）battery（No-include） Weight/Dimension 910g/ 150*80*27mm Working condition Humidity: 80% RH main unit: 0 to 50℃ Vane: 0 to 60℃ Storage Humidity: 0 to 90% RH main uni : 0 to 50℃ Vane : 0 to 60℃ Package list: 1 * Anemometer 1 * Probe 1 * User manual 1 * Plastic box Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product.