水活性影響很多物質物理、機械、化學、微生物特性，這些包括流量特性、凝聚、內聚力和靜態(tài)現(xiàn)象。 A PC / HygroLab 2 based solution (requires MS Windows). The set consists of a HygroLab 2 microprocessor based indicator, a probe for the measurement of product samples, accessories and HW3 software. full featured water activity software with automatic capture of end values measures water activity in typically 5 minutes permits the measurement of up to 4 products simultaneously wide choice of probes, suitable for different applications 0-100%RH/0...1AW, 5-50度 ACCURACY AT 23度：+/-1.5%RH,+/-0.015AW, +/-0.3K/度 Display resolution:0.1%rh, 0.001aw, 0.1讀/F,0.01 calculated value