Description
and lens-behavior studies
5-inch stainless steel rod with thread-fitted joints for smooth adjustment
marked (Al) on one face with a total 1
360-degree optical bench disk
drawing both DC and AC simultaneously with short-circuit protection via a 0
Handheld Digital pH Tester, EI 0961 Subcategory_Condensers and lens-behavior studiesHandheld digital pH tester designated EI 0961, displaying solution acidity on a benchtop grade meter small enough for fieldwork and classroom water quality lessons.
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