EXTECH pH Праводнасць TDS Кіраўніцтва па вымярэнні тэмпературы салёнасці
EXTECH pH Conductivity TDS Salinity Temperature Meter Introduction Congratulations on your purchase of the ExStik® EC500 pH/Conductivity/Total Dissolved Solids (TDS) / Salinity meter. With the EC500’s dynamic cell-constant technology it…