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MA877 Digital Refractometer SG
for Saltwater by Milwaukee Instruments.
The MR series refractometers are precision optical instruments used for measuring aquarium water salinity. They work using principle of light refraction through liquid.
PSU: 0 - 50
PPT: 0 - 150 S.G.: 1.000 - 1.114
Temp: 0.1 C/F
Temp: ±0.3C / ±0.5F
Temp: 0 - 80C / 32 - 176F
* Calibration: automatic
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