We are GuangZhou RuiQi Trade Co., Ltd. Our company can supply various of instruments with good quality and low price.
1.Refractometers: can be used for brix, honey, salinity, battery, coolant, clearance, wine, alcohol, brake-check, serum protein, ect.
2.Water quality testing(monitoring): series of digital display water thermometer, EC conductivity meter, pNA meter, pNA salt meter, PH meter, PH soil meter, TDS meters , ORP, etc.
3.Soil PH Moisture Meter