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,Thermometer,Digital Thermometer,In-out Thermometer,Aquarium thermometer,Digital Clinical Thermometer,Digital multimeter,Digtal Anemometer,Moisture meter,Thickness meter,Coating Thickness meter,Humidty meter,Clamp meter,Electronic Digital Scale....... and Surveying Instruments etc.