Vintage pH meter, flea market, Germany.

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Size: 3456px × 2304px
Location: Flea market, Germany.
Photo credit: © Emily McCormick / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: acidity, alkaline, alkalinity, analysis, chemical, device, dial, electrode, equipment, hydrogen-ion, lab, measure, measurement, metal, meter, ph, retro, scientific, sensor, solution, vintage, voltage