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| Analytical Sensors, Inc. |   |
| Eco Sensors, Inc. |   | |
| Consort nv |   | |
| Hach Company P.O. Box 389 - Loveland, CO 80539-0389 USA - - |   | |
| American Sigma |   | |
| Orion Research, Inc. |   | |
| GLI International |   | |
| Yokogawa Corp. Of America |   | |
| Common Sensing, Inc. |   | |
| TPS Pty Ltd |   | |
| Mettler Toledo, Inc. |   | |
| Greenspan Technology |   | |
| Campbell Scientific, Inc. |   | |
| Danfoss Water & WasteWater |   | |
| Dryden Aqua |   | |
| Engineered Systems & Designs, Inc. |   | |
| Vernier Software & Technology |   | |
| Extech Instruments |   | |
| Hydrolab |   | |
| The Foxboro Company |   | |
| Wescor, Inc |   | |
| HORIBA International |   | |
| Canongate Technology Inc. |   | |
| Uniloc Division Fisher-Rosemount 2400 Barranca Parkway - Irvine, CA 92606 USA - - |   | |
| BioAsure, LLC |   | |
| Desin Instruments S.A |   | |
| Control Co. |   | |
| Jenco Instruments Inc. |   | |
| TBI |   | |
| Innovative Sensors, Inc. |   | |
| Endress+Hauser, Inc. (E+H) |   | |
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