AMTAST Portable Dissolved Oxygen and Temperature Meter DO Sensor Dissolved Oxygen Levels Tester, DO Range: 0~20.00 mg/L, 0~20.00 ppm: ... Meter, Membrane Cap x 2, Electrolyte x 50 ml, Plastic burette, Lanyard, Sandpaper, Instruction manual, Carrying case, Warranty Card. ... great product for the price. use it in the classroom and fulfills all ...
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