The Metrix Plus - 1.5 V Digital Anemometer is a portable device used to measure wind speeds and direction. The 1.5 V Digital Anemometer can accurately measure wind speed, velocity, direction and pressure with minimal errors. The Digital Anemometer by Metrix Plus has a backlit LCD screen that is visible in dark environments. The Metrix Plus - 1.5 V Digital Anemometer has a data hold function for ease of calculations. The 1.5 V Digital Anemometer is a sturdy device that is operated by batteries. The device has an ergonomic design, making it very handy. Product Specifications: Manufactured by: Metrix Plus Country of Origin: India Product Code: AVM 01 Product: Digital Anemometer Wind speed measuring range: 0.3 - 30 m/s Wind speed accuracy: ± 0.5 % + 0.1 Temperature Measuring range: 0 °C - 50 °C Temperature resolution: 0.1 C Resolution: 0.1 m/s Power: 3 x 1.5V AAA batteries