型风速计* high temp. air velocity measurement. (up to 50℃) * cmm (m3/min.), cfm (ft3/min.) measurement. * units(单位):m/s, ft/min, km/h, knots, mile/h, temp.(℃/℉). * range(范围):0.8 to 12.0 m/s., rs-232. * size(尺寸):180 x 72 x 32 mm.