Refractometers

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Extech RF20

便携式 ATC 盐度折射计（0 至 100ppt）

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Extech RF15

Portable Sucrose Brix Refractometer (0 to 32%) with ATC

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Extech RF12

Portable Brix Refractometer (0 to 18%) with ATC

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Extech RF11

便携式 ATC 糖度白利度折射计（0 至 10%）

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Extech RF41

Portable Battery Coolant/Glycol Refractometer with ATC (°C)

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Extech RF40

便携式电池冷却液/乙二醇折射计（带自动温度补偿 (°F)）

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