ZHOU ENSI LTD is a branch of A.YITE TECH, which have a very long history in industry control and HVAC field from 1973, including 2 factory and 1 big laboratory for flow switch, flow meter, pressure switch, differertial pressure switch, level and depth meter, air flow sensor, PH Conductivity, Dissolved Oxygen,  Sludge Concentration, Temperature and so on.

For Industrial Products, AYT group build a big laboratory to develop the products for Flow Control and Pressure Control. We could supply many kinds of products for HVAC, Industry, Environment Protect, including Flow Meter, Flow switch, Level Guage, Depth Meter, Pressure Switch and Transmitter, Differential Pressure Flow Switch and Transmitter. We also could supply Automatic Filling Valve, Diaphragm Safety Valve, Automatic Exhaust Valve, etc.

In the Environmental Protect field, we design many type of water analyzer products, most of them is industry grade water online monitor, e.g. PH & OPR Analyzer, Conductivity Analyzer, Dissolved Oxygen Analyzer, Luminescent Optical Dissolved Oxygen Analyzer Meter, Acid Alkali Concentration Meter, Residual Chlorine Analyzer Monitor Meter, MLSS Suspended Solids Sludge Concentration Meter, Turbidity Monitor Meter, and some depth & level meter for sludge or water.

We have a long history from 1973, have build a completed manage systerm, we have get many manage certification, including ISO9001:2000, ISO14001:2004, OHSAS18001:2007 and others. Because of high quality and better performance, we have got CE, CB, ROSH, GE, UL for our electronic products. D-U-N-S Number: 663261288.