Certificate of Registration This certifies that the Quality Management System of Netech Corporation 110 Toledo Street Farmingdale, New York, 11735, United States has been assessed by NSF-ISR and found to be in conformance to the following standard(s): ISO 9001:2015 Scope of Registration: Design and Manufacture of Precision Measurement and Calibration Instruments Carl Blazik, Director, Technical Operations & Business Units, NSF-ISR, Ltd. Certificate Number: C0098684-IS5 Certificate Issue Date: 30-MAR-2017 Registration Date: 29-MAR-2017 Expiration Date *: 28-MAR-2020