If you don't measure Ethylene, you can't control it!
Portable Digital Refractometer
Instrument for reading sugar levels in: fruit and grapes (alcoholic degree) - range: 0 to 53% Brix
- resolution: 0,1% Brix
- accuracy: ± 0.2% Brix
- dimensions: 55x109x31 mm
- weight: 100 g
- power supply: n° 2 batteries, AAA type