COMPONENT BRANDS
| ITEM NAME | BRAND | 0RIGINAL |
| pH sensor | METLER TOLED0/HAMILTON | Switzerland |
| D02 sensor | METTLER TOLED0/HAMILTON | Switzerland |
| pH,D02 signal line | METTLER TOLED0/HAMILTON | Switzerland |
| PLC | Siemens high-end series | Germany |
| Touch screen | MCGS | Taiwan |
| Machinery Seal | JOHN CRANE | U.K. |
| Peristaltic pump | Watson-Marlow | U.K. |
| Refill bottle | SCH0T | Germany |
| Thermal Mass Flow Meter | Vogtlin | Switzerland |
| PT100 sensor | JUM0 | Germany |
| Low voltage electrical | Schneider | France |
| Cold water quick plug | CPC | U.S. |
