Description
and lens-behavior studies
5-inch stainless steel rod with thread-fitted joints for smooth adjustment
Thermally isolated 150mL aluminum reservoir inside a polystyrene-lined jacket
Pairs 50mm of aperture with a 200mm focal length on a convex glass surface
Swung by hand for accurate ventilation
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.
Exchange/Return Notes
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- Final sale items are not eligible for returns or exchanges.
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