笔式酸度计ST10 ph计
pH测量范围0.00 – 14 pH精度±0.1 pH
ST20酸度计pH计
测量范围0.00 – 14 pH;0.0 – 99.0 °C精度± 0.05 pH / ± 0.5 °C
Starter 笔式测量仪