Atago2384 MASTER-100H Hand-Held Refractometer, Automatic Temperature Compensation, Brix 60.0 to 100.0%

Atago 2384 MASTER-100H Hand-Held Refractometer, Automatic Temperature Compensation, Brix 60.0 to 100.0%

Apera Instruments Premium-Series PH60S Food pH Pocket Tester Kit, Swiss Spear pH Electrode, ±0.01 pH Accuracy, -2.00-16.00 pH Range (AI313)