
DiFluid R2 Extract Digital Brix Refractometer, Coffee TDS Refractometer, Coffee Concentration Refractometer with OTA Updates DiFluid Café APP, Multi-Test Modes, Range 0-30%, Accuracy 0.03% TDS: Amazon.com: Industrial & Scientific,

DiFluid R2 Extract Coffee TDS Refractometer, Multi-Test Modes & OTA Updates DiFluid Café APP with Range 0-30%, Precision 0.02%,Resolution 0.01%,Accuracy: ±0.03% TDS, Rechargeable, Portable, Black : Amazon.sg: DIY and Tools,

DiFluid Coffee TDS R2 Extract,

DiFluid Coffee TDS R2 Extract