Digital Anemometer: 1.Display 0.5(13mm)4-digitLCD 2. ... s,km/h,ft/min,knotsApplication:Installation,debug and repair for refrigeration industry, ventilation duct, environment monit-or, navigation measurement ... , weather forecast, collection of the weather datum for outdoor busywork and fire department.AIR VELOCITY0.4~45.0m ... x 1.5 AAA BATTERY DIMENSION 156X67X28mm Digital Anemometer