2ACOA-WM3Digital Transceiver

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© Celltech Labs Inc – 2017 --- Proprietary --- ______________________________________________________________________________________ 21-364 Lougheed Road, Kelowna, British Columbia, Canada V1X 7R8 Tel: 1-250-765-7650 Fax: 1-250-765-7645 Date: 14 July 2021 To: Federal Communications Commission 7435 Oakland Mills Road Columbia, Maryland 21046 USA RE: Zenner USA. FCC ID: 2ACOA-WM3 This is an application for a new certification of Zenner USA., FCC ID: 2ACOA-WM3, Product Model Name/PMN: Stealth Reader, Models/HVIN: 100-0024-001 and 100-0025-001. This a Part 15 Hybrid device operating in one of several DSS or DTS modes in the 902-928MHz Band. MESH is a DSS mode operating between 902 and 928MHz with a 20dB Bandwidth of 230kHz using 50 hopping channels. Drive-By is a DSS mode operating between 902 and 928MHz with a 20dB Bandwidth of 400kHz using 50 hopping channels. Long Range (LoRa) DSS is a DSS mode operating between 902 and 915MHz with a 20dB Bandwidth if 150kHz using 64 hopping channels. Long Range (LoRa) DTS is a DTS mode operating between 902 and 915MHz with a DTS bandwidth of 500kHz. These modes modulate using FSK and do not simultaneously transmit. This Class A digital device is marketed to, and professionally installed by, Public Utility Service Providers. The device is used to send utility metering data to the service providers. The two model variants of this device are identically the same with the exception of the interface connection to the metering equipment. This device was evaluated to, and meets the requirements of, 47 CFR §15.247. Should there be any questions or concerns with this filing, please feel free to contact me. Sincerely, Art Voss, P.Eng., BS EE Technical Manager 21-364 Lougheed Rd Kelowna, BC, V1X 7R8, Canada 250-765-7650 Ext 202 [email protected] www.celltechlabs.com

Applicant: Zenner USA FCC ID: 2ACOA-WM3 Test Report S/N: 45461674-R1.0 ISED ID 26631-WM3 ©2021 Celltech Labs Inc. This document is not to be reproduced in whole or in part without the expressed written permission of Celltech Labs Inc. Page 10 of 18 EXHIBIT 21 – PHOTOS – DUT EXTERNAL AND SAR DUT Figure E21.1 – External, 100-0024-001, Front Side Applicant: Zenner USA FCC ID: 2ACOA-WM3 Test Report S/N: 45461674-R1.0 ISED ID 26631-WM3 ©2021 Celltech Labs Inc. This document is not to be reproduced in whole or in part without the expressed written permission of Celltech Labs Inc. Page 11 of 18 Figure E21.2 – External, 100-0024-001, Back Side Applicant: Zenner USA FCC ID: 2ACOA-WM3 Test Report S/N: 45461674-R1.0 ISED ID 26631-WM3 ©2021 Celltech Labs Inc. This document is not to be reproduced in whole or in part without the expressed written permission of Celltech Labs Inc. Page 12 of 18 Figure E21.3 – External, 100-0024-001, Side Applicant: Zenner USA FCC ID: 2ACOA-WM3 Test Report S/N: 45461674-R1.0 ISED ID 26631-WM3 ©2021 Celltech Labs Inc. This document is not to be reproduced in whole or in part without the expressed written permission of Celltech Labs Inc. Page 13 of 18 Figure E21.4 – External, 100-0024-001, Top Figure E21.5 – External, 100-0024-001, Bottom Applicant: Zenner USA FCC ID: 2ACOA-WM3 Test Report S/N: 45461674-R1.0 ISED ID 26631-WM3 ©2021 Celltech Labs Inc. This document is not to be reproduced in whole or in part without the expressed written permission of Celltech Labs Inc. Page 14 of 18 Figure E21.6 – External, 100-0025-001, Back Side

REV DESCRIPTION DATE APPVD REVISIONS FILE: REV SIZE SCALE SHEET 1 OF DWG NUMBER ECN ZONE B DECIMAL ANGULAR X.X ± .3 ±°0°30' X.XX ± .03 X.XXX ± .003 THIRD ANGLE PROJECTION UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN INCHES DRW CHK DES PM APPROVALS MAT'L NOTES: UNLESS OTHERWISE SPECIFIED1. INTERPRET DRAWING PER ANSI Y14.5M-1998 A B A B 1 2 1 2 DESCRIPTION PART NUMBER APPLICATION FCC ID: 2ACOA-WM2FIC: 26631-WM3 This device complies with Part 15 of the FCC Rules. Operation is subject tothe following two conditions; (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. ZENNER see user's manual for patents www.ZennerUSA.com FCC and IC Label Location WM3 682-0018-000RA.DWG 2ACOA-WM3 Label Location EJM 10DEC2020 MANUFACTURING RELEASE A 10DEC20 EJM N/A 1 A Stealth Reader 100-0024-001 EJM 10DEC2020EJM 10DEC2020 1.25 inch FCC ID: 2ACOA-WM2F IC: 26631-WM3 This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions; (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. ZENNER see user's manual for patents www.ZennerUSA.com Stealth Reader 100-0024-001

Zenner USA | 15280 Addison Rd, Suite 240, Addison, Texas 75001 | 888.766.1253 | ZennerUSA.com Label: Zenner Part number 682-0019-001 Label: Zenner Part number 682-0019-002

Applicant: Zenner USA FCC ID: 2ACOA-WM3 Test Report S/N: 45461674-R1.0 ISED ID 26631-WM3 ©2021 Celltech Labs Inc. This document is not to be reproduced in whole or in part without the expressed written permission of Celltech Labs Inc. Page 15 of 18 EXHIBIT 22 – PHOTOS – DUT INTERNAL Figure E22.1 – Internal – Bottom Cover Removed Figure E22.2 – Internal – Internal Components Applicant: Zenner USA FCC ID: 2ACOA-WM3 Test Report S/N: 45461674-R1.0 ISED ID 26631-WM3 ©2021 Celltech Labs Inc. This document is not to be reproduced in whole or in part without the expressed written permission of Celltech Labs Inc. Page 16 of 18 Figure E22.3 – PCB Top Side Figure E22.4 – PCB Top Side, Shield Removed Figure E22.5 – PCB Bottom Side

f 1500 S 20 = S L = S C = R 20 = R c = P T = P A = G N = f = (%) (dB) R C = S C = S 20 at 20cm = 0.099 Power Input to Antenna Numeric Gain of the Antenna (MHz) Antenna Gain:0.00 (numeric) 500.00(mW) Cable or Other Loss:0.00 Numeric Antenna Gain (G N ): 1.00 Adjust Power 100% Power Density Limit Minimum Distance to the Radiating Element to Meet Compliance Power Density of the Device at the Compliance Distance R C 20cm 8.0 (cm) (mW/cm 2 ) 0.62 (mW/cm 2 ) S L = Duty Cycle/Loss Adjusted Power (P A ): Transmit Frequency Transmit Duty Cycle = (dBi) Tx Frequency (f): RF Power at Antenna Input Port (P T ): Transmit Duty Cycle: Use Group = General Popuation 500.00 100.00 928.00 0.619 (mW/cm 2 ) (mW) (mW/cm 2 ) Power Density of the Device at 20cm Prediction of MPE Limit 47 CFR § 2.1091/ § 2.1093 S 20 = P A G N R C = √ P A G N S C = P A G N 4πR C 2 4πS L 4πR 20 2 S L = Art VossSenior EngineerCelltech Labs Inc. PASS RESULT FCC ID: 2ACOA-WM3

MeasuredLimit Emission e.r.p./e.r.i.p. Margin RangePolarization [E Meas ][A L ] (dBm)(dBuV/m) (dB) 30-1000MHzND49.5n/a 1 - 3GHzND60.0n/a 3 - 10GHzND60.0n/a 30-1000MHzND49.5n/a 1 - 3GHzND60.0n/a 3 - 10GHzND60.0n/a Measurement Results Frequency Horizontal Vertical Antenna Results: Complies ND: No emissions detected above ambient or within 20dB of the limit Width 5.35" AntennaEmission Measured Frequency Emission (MHz)(dBuV) Horizontal NDND Radiated Rx Emissions Polarization Zenner USA - WM3 Radiated Rx Emissions - 30MHz-1GHz OATS Horizontal 10.0M100.0M1.0G Frequency (Hz) 0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 02:25:36 PM, Thursday, July 15, 2021Profile Build: 2020.10.01 Width 5.35" AntennaEmission Measured Frequency Emission (MHz)(dBuV) Vertical NDND Radiated Rx Emissions Polarization Zenner USA - WM3 Radiated Rx Emissions 30 MHz - 1 GHz OATS Vertical 10.0M100.0M1.0G Frequency (Hz) 0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 02:25:36 PM, Thursday, July 15, 2021Profile Build: 2020.10.01 Width 5.35" TraceTraceAntennaEmission Measured Frequency Emission (MHz)(dBuV) AmbientDUTHorizontal NDND Radiated Rx Emissions Polarization21 A Att 0 dB * Ref 90 dBμV 200 MHz/Start 1 GHzStop 3 GHz * RBW 1 MHz VBW 10 MHz SWT 10 ms *1 RM VIEW 3DB *2 RM VIEW -10 0 10 20 30 40 50 60 70 80 90 1 Marker 1 [T1 ] 15.97 dBμV 3.000000000 GHz Date: 5.JUL.2021 10:22:32 Width 5.35" TraceTraceAntennaEmission Measured Frequency Emission (MHz)(dBuV) AmbientDUTVertical NDND Radiated Rx Emissions 12Polarization A Att 0 dB * Ref 90 dBμV 200 MHz/Start 1 GHzStop 3 GHz * RBW 1 MHz VBW 10 MHz SWT 10 ms 3DB *1 RM VIEW *2 RM VIEW -10 0 10 20 30 40 50 60 70 80 90 1 Marker 1 [T1 ] 15.93 dBμV 3.000000000 GHz Date: 5.JUL.2021 10:30:15 Width 5.35" AntennaEmission Measured Frequency Emission (MHz)(dBuV) Horizontal NDND Radiated Rx Emissions Polarization Ref 90 dBμV * A Att 0 dB RBW 1 MHz VBW 10 MHz SWT 140 ms * Start 3 GHzStop 10 GHz700 MHz/ 3DB *1 RM VIEW -10 0 10 20 30 40 50 60 70 80 90 1 Marker 1 [T1 ] 22.30 dBμV 3.154000000 GHz Date: 5.JUL.2021 10:35:44 Width 5.35" AntennaEmission Measured Frequency Emission (MHz)(dBuV) Vertical NDND Radiated Rx Emissions Polarization Ref 90 dBμV * A Att 0 dB RBW 1 MHz VBW 10 MHz SWT 140 ms * Start 3 GHzStop 10 GHz700 MHz/ 3DB *1 RM VIEW -10 0 10 20 30 40 50 60 70 80 90 1 Marker 1 [T1 ] 22.06 dBμV 3.140000000 GHz Date: 5.JUL.2021 10:34:27

MeasuredAntenna Cable FrequencyACF LossLimit Margin RangeFrequency Polarization Frequency[ACF] [L C ] (MHz)(MHz)(dB) (dB) (dBuV) (dB) 9kHz - 30MHz916.0FrontNDND(1) 0.000.00 0.00 (3) ND (2) n/an/a 9kHz - 30MHz916.0SideNDND(1) 0.000.00 0.00 (3) ND (2) n/an/a 30-1000MHz916.0Horizontal 750.1MHz39.20.000.00 0.00 (3) 39.2 (2) 56.917.7 30-1000MHz916.0Horizontal 854.4MHz40.20.000.00 0.00 (3) 40.2 (2) 56.916.7 30-1000MHz916.0Vertical729.4MHz40.40.000.00 0.00 (3) 40.4 (2) 56.916.5 30-1000MHz916.0Vertical755.7MHz40.50.000.00 0.00 (3) 40.5 (2) 56.916.4 30-1000MHz916.0Vertical852.3MHz40.90.000.00 0.00 (3) 40.9 (2) 56.916.0 1 - 3GHz916.0HorizontalNDND(1) 27.404.58 0.00 (3) ND60.0n/a 1 - 3GHz916.0VerticalNDND(1) 27.404.58 0.00 (3) ND60.0n/a 3-10GHz916.0HorizontalNDND(1) 36.769.86 0.00 (3) ND60.0n/a 3-10GHz916.0VerticalNDND(1) 36.769.86 0.00 (3) ND60.0n/a Results: AntennaChannel (dBuV/m) Summary of Radiated Tx Emissions (Restricted Band) Emission MeasuredAmplifier Corrected EmissionGainEmission Complies (1) No Emissions Detected (ND) above ambient or within 20dB of the limit (2) Antenna ACF, Cable Loss and Amplifier Gain corrected in Spectrum Analyzer Transducer Factor (3) External Amplier not used E Corr = E Meas + ACF + L C - G A [E Meas ][G A ][E Corr ] (dBuV) (dB) Width 5.35" AntennaEmission Measured Frequency Emission (MHz)(dBm) Front NDND Radiated Tx Emissions: Restricted Band Polarization Zenner USA - WM3 Radiated Tx Emissions - 9kHz - 30MHz OATS - Loop Front 1.0K10.0K100.0K1.0M10.0M100.0M Frequency (Hz) 0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0 110.0 120.0 130.0 02:21:05 PM, Thursday, July 15, 2021Profile Build: 2020.10.19 Width 5.35" AntennaEmission Measured Frequency Emission (MHz)(dBm) Side NDND Radiated Tx Emissions: Restricted Band Polarization Zenner USA - WM3 Radiated Tx Emissions - 9kHz - 30MHz OATS - Loop Side 1.0K10.0K100.0K1.0M10.0M100.0M Frequency (Hz) 0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0 110.0 120.0 130.0 02:21:05 PM, Thursday, July 15, 2021Profile Build: 2020.10.19 Width 5.35" AntennaMarkerEmission Measured Frequency Emission (MHz)(dBm) Horizontal Fundamental -- Radiated Tx Emissions: Restricted Band 1Polarization Zenner USA - Wm3 Radiated Tx Emissions - 30MHz-1GHz OATS Horizontal 10.0M100.0M1.0G Frequency (Hz) 0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 12:25:02 PM, Saturday, July 17, 2021Profile Build: 2020.10.19 Width 5.35" AntennaMarkerEmission Measured Frequency Emission (MHz)(dBm) VerticalFundamental -- Radiated Tx Emissions: Restricted Band Polarization1 Zenner USA - WM3 Radiated Tx Emissions 30 MHz - 1 GHz OATS Vertical 10.0M100.0M1.0G Frequency (Hz) 0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 12:25:02 PM, Saturday, July 17, 2021Profile Build: 2020.10.19 Width 5.35" TraceTraceAntennaEmission Measured Frequency Emission (MHz)(dBm) AmbientDUTHorizontal NDND Radiated Tx Emissions: Restricted Band 2Polarization1 Ref 90 dBμV * A Att 0 dB 200 MHz/Start 1 GHzStop 3 GHz * RBW 1 MHz VBW 10 MHz SWT 10 ms *1 RM VIEW 3DB *2 RM VIEW -10 0 10 20 30 40 50 60 70 80 90 1 Marker 1 [T1 ] 16.34 dBμV 3.000000000 GHz Date: 5.JUL.2021 11:07:59 Width 5.35" TraceTraceAntennaEmission Measured Frequency Emission (MHz)(dBm) AmbientDUTVertical NDND Radiated Tx Emissions: Restricted Band 12Polarization Ref 90 dBμV * A Att 0 dB 200 MHz/Start 1 GHzStop 3 GHz * RBW 1 MHz VBW 10 MHz SWT 10 ms *1 RM VIEW 3DB *2 RM VIEW -10 0 10 20 30 40 50 60 70 80 90 1 Marker 1 [T1 ] 16.10 dBμV 3.000000000 GHz Date: 5.JUL.2021 11:02:07 Width 5.35" AntennaEmission Measured Frequency Emission (MHz)(dBm) Horizontal NDND Radiated Tx Emissions: Restricted Band Polarization Ref 90 dBμV * A 3DB Att 0 dB RBW 1 MHz VBW 10 MHz SWT 140 ms * Start 3 GHzStop 10 GHz700 MHz/ *1 RM VIEW -10 0 10 20 30 40 50 60 70 80 90 1 Marker 1 [T1 ] 22.05 dBμV 3.616000000 GHz Date: 5.JUL.2021 11:08:40 Width 5.35" AntennaEmission Measured Frequency Emission (MHz)(dBm) Vertical NDND Radiated Tx Emissions: Restricted Band Polarization Ref 90 dBμV * A 3DB Att 0 dB RBW 1 MHz VBW 10 MHz SWT 140 ms * Start 3 GHzStop 10 GHz700 MHz/ *1 RM VIEW -10 0 10 20 30 40 50 60 70 80 90 1 Marker 1 [T1 ] 22.10 dBμV 3.042000000 GHz Date: 5.JUL.2021 11:02:50

Applicant: Zenner USA FCC ID: 2ACOA-WM3 Test Report S/N: 45461674-R1.0 ISED ID 26631-WM3 ©2021 Celltech Labs Inc. This document is not to be reproduced in whole or in part without the expressed written permission of Celltech Labs Inc. Page 17 of 24 EXHIBIT 23 – PHOTOS – EMC AND SAR SETUP Figure E23.1 – Setup, Conducted Measurements Applicant: Zenner USA FCC ID: 2ACOA-WM3 Test Report S/N: 45461674-R1.0 ISED ID 26631-WM3 ©2021 Celltech Labs Inc. This document is not to be reproduced in whole or in part without the expressed written permission of Celltech Labs Inc. Page 18 of 24 Figure E23.2 – Setup, Radiated Emissions, 9kHz-30MHz, Front Polarization Applicant: Zenner USA FCC ID: 2ACOA-WM3 Test Report S/N: 45461674-R1.0 ISED ID 26631-WM3 ©2021 Celltech Labs Inc. This document is not to be reproduced in whole or in part without the expressed written permission of Celltech Labs Inc. Page 19 of 24 Figure E23.3 – Setup, Radiated Emissions, 9kHz-30MHz, Side Polarization Applicant: Zenner USA FCC ID: 2ACOA-WM3 Test Report S/N: 45461674-R1.0 ISED ID 26631-WM3 ©2021 Celltech Labs Inc. This document is not to be reproduced in whole or in part without the expressed written permission of Celltech Labs Inc. Page 20 of 24 Figure E23.4 – Setup, Radiated Emissions, 30-1000MHz, Horizontal Polarization Applicant: Zenner USA FCC ID: 2ACOA-WM3 Test Report S/N: 45461674-R1.0 ISED ID 26631-WM3 ©2021 Celltech Labs Inc. This document is not to be reproduced in whole or in part without the expressed written permission of Celltech Labs Inc. Page 21 of 24 Figure E23.5 – Setup, Radiated Emissions, 30-1000MHz, Vertical Polarization Applicant: Zenner USA FCC ID: 2ACOA-WM3 Test Report S/N: 45461674-R1.0 ISED ID 26631-WM3 ©2021 Celltech Labs Inc. This document is not to be reproduced in whole or in part without the expressed written permission of Celltech Labs Inc. Page 22 of 24 Figure E23.6 – Setup, Radiated Emissions, 1 – 10GHz, Horizontal Polarization Applicant: Zenner USA FCC ID: 2ACOA-WM3 Test Report S/N: 45461674-R1.0 ISED ID 26631-WM3 ©2021 Celltech Labs Inc. This document is not to be reproduced in whole or in part without the expressed written permission of Celltech Labs Inc. Page 23 of 24 Figure E23.7 – Setup, Radiated Emissions, 1 – 10GHz, Vertical Polarization