Auto shutdown and manual modes combined with backlight ensures use in dark environments like night construction or tunnel inspections Features a large LCD screen with backlight for easy reading in both bright outdoor and low light indoor conditions as a digital anemometer High precisions sensors provides fast response to detect speed, temperature in real time with minimal error for professional results Ergonomic grip and compact size make it comfortable to hold and operate with single hand, ideal for fieldwork and on site measurements Supports various units for speed and temperature to meet usage preferences, Manufacturer: Hsyzygian