... equipment. Micro-anemometer is composed with STC12C2052 singlechip and its related periphery line, the display screen adopts two windows high ... valueWork condition-30°C~+60°C Main Technical Datas;1, display error: ≤ 3%2,Action error: ≤ 2%3, ... , construction, ports, shipping and other industries.ANY REQUESTS,PLEASE FEEL FREE TO CONTACT US!^_^ portable anemometer safety equipment with alarm system