and surface imperfections
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**Conoscopic Observation:** Using the Bertrand Lens for interference figures (optical sign determination)
Shop Waterproof pH/mV/Conductivity/TDS/Salt/Temp Meter – ESAW India Accurate Measurement Laboratory Jug and surface imperfectionsThe ESAW Waterproof Multi Parameter Meter is a compact, durable solution designed to measure pH, mV, Conductivity, TDS, Salinity, and Temperature with high precision. Designed for multi functional lab analysis, it is especially suited for rigorous applications in educational institutions, water treatment testing, research facilities, and industrial quality control labs. Ideal for science equipment for students, this rugged device supports hands on