Company's brief introduction  Kelilong Electron Co.Ltd, established in May 1993 and awarded by Fujian Standard Measurement Bureau the manufacture licence of measuring utensils under the serial No.00000136, is a specialized manufacturer and marketer of the analytic instruments and meters. Currently, the company mainly devotes itself to water quality detection, RPM rotary speed measurement, air quality testing and the production of high content technological products, which are applicable to the fields of environmental protection, chemical fiber, farming, school scientific research, energy, transportation, aviation, household appliances and etc. Major products: Water Quality Testing(monitoring) Instrument: PH meter,conductivity meter, TDS meters, ORP meter; pNa meter, salt meter; rotary speed measurement of the machinery manufacturing equipment: Many functions tachometer; air quality testing instrument: thermometer, hygrometer; Others: Refractometer, Water pump.