Product Suitable for construction, steel foundries, brick factories, glass facilities, boiler rooms, etc Specifications Wind Speed Range: 0.7~30m/s Accuracy of Wind Speed: 5% Digit Material: ABS+Metal Color as shown Resolution: 0.1m/s Wind Speed Unit Selection: m/s, Ft/min, Knots, km/h, Mph Temperature range: 0~50& 8451; Accuracy of temperature range: +/-0.6& 8451; Resolution: 0.1& 8451; WBGT Alarm Press the MODE button to turn on WBGT alarm. Combining the data of the hazard level table to judge whether the temperature is too high. Backlit Screen When WBGT alarms, the backlight color changes to red. Note: if the backlight is not turned on during the alarm, the backlight of the LCD will still be red. Low Battery Indicator When the battery symbol appears on the LCD, it means the battery is low. Product Features: Humidity Heat index Wind Speed Ambient Temperature Black Ball Temperature Package Contents: 1 x Screwdriver 2 x 5V AAA Batteries 1 x 881W Digital Anemometer Only the above package content, other products are not included. Note: Light shooting 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.