E-INGINST Electron Co.,Ltd are professional manufacturer and exporter for various industry instruments and meters From China main product : Refractometer,Hand-Held Refractometer,Digital refractometer,Digital Thermometer,In-out Thermometer,Aquarium thermometer,Soil PH-Moisture Meter,PH meter,EC meter,TDS meter,ORP Meter,Conductivity Meter....... and Surveying Instruments etc.
Most of our products are CE marked, some of them have UL certificate. Our products are widely welcomed in USA, South