* This portable anemometer provides the convenience of a remote sensor separately. * Multifunctional.the measurement unit can be selected according to different requirements. * Built in temperature , measurement. * Resistance sensor for fast temp. response time. * Low-friction ball-bearing design allows free vane movement. * A sensitive balanced vane wheel rotates freely in response to airflow. * Conventional twisted vane arms, always a source of unreliability has been eliminated. * DATA HOLD function for storing the desired value on display to read. * LCD display for clear readout even in bright ambient light condition * Wide applications: use to check air conditioning & heating systems ,measure air velocities, wind speeds, temperature etc.