Beer Brewing Refractometer
RHB-32SG - Fuzhou Zhongtuo Optoelectronic Co.,Ltd
Digital Hand-held Refractometer is a precise optical instrument that can accurately and quickly measure the refractive index, concentration and other parameters of various aqueous solutions.
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Oechsle & Brix Refractometer
RHB-10/RHB-53 - Fuzhou Zhongtuo Optoelectronic Co.,Ltd