The draper 180-da-1 is a handheld digital anemometer designed for accurate measurement of air velocity and temperature in professional and trade applications. This compact wind speed meter features a built-in rotating wind vane that delivers rapid, precise readings on an easy-to-read backlit lcd dual display, making it ideal for hvac engineers, contractors, and facilities maintenance professionals. The ergonomic, pocket-sized design ensures the anemometer is highly portable for on-site measurements, whilst the versatile unit selector allows readings in m s, km h, ft min, mph and knots to suit different project requirements. Temperature can be displayed in either celsius or fahrenheit, with a measurement range of -20 c to 70 c and wind speed detection from 0.4 To 30m s. Practical features include data hold for capturing readings, min max function for recording peak values, and auto power off to conserve battery life. The device provides up to 60 hours of operation from three aaa batteries sold separately and includes a low battery indicator. With a data update rate of 300ms and weighing just 134.5G with batteries, this anemometer delivers professional-grade performance in a convenient handheld format suitable for ventilation assessment, environmental monitoring, and air flow testing. Features and benefits: backlit lcd dual display for clear readings in all lighting conditions built-in rotating wind vane for direct air velocity measurement wind unit selector covering m s, k...