T76 Milwaukee เครื่องวัดค่าทีดีเอส Waterproof High Range Total Dissolved Solids Pen (TDS) High Range Total Dissolved Solids (TDS) Pen is designed for, aquariums, aquaculture, education, pools, water conditioning and ...
T75 Milwaukee เครื่องวัดค่าทีดีเอส Waterproof Low Range Total Dissolved Solids Pen (TDS) Easy-to-read LCD Measures Total Disolved (TDS) direct and with automatic temperature compensation.